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Enter a list of names and randomly select one winner with a single click, perfect for classroom or party draws.","description_zh":"输入名单随机抽取一人","frontend_only":true,"lang":"es","method":"NONE","name":"随机点名","name_zh":"随机点名","name_en":"Random Picker","schema_url":"/es/tools/randianming/schema.json","schema_url_en":"/en/tools/randianming/schema.json","schema_url_zh":"/tools/randianming/schema.json","slug":"randianming","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/randianming/","ui_url_en":"/en/tools/randianming/","ui_url_zh":"/tools/randianming/"},{"api_url":"/api/qrcode/","category":"Herramientas de Red","category_zh":"网络工具","createdAt":1758372000000,"description":"Free online QR Code Generator. Enter text or URL, generate QR code image in PNG or SVG format with custom size. 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Pure frontend.","description_zh":"在线 MIME 类型查询工具，输入文件扩展名或 MIME 类型，快速查询对应的映射关系，支持常见文件格式，纯前端处理，数据不外传。","frontend_only":true,"lang":"es","method":"NONE","name":"MIME 类型查询","name_zh":"MIME 类型查询","name_en":"Mime Type","schema_url":"/es/tools/mime_type/schema.json","schema_url_en":"/en/tools/mime_type/schema.json","schema_url_zh":"/tools/mime_type/schema.json","slug":"mime_type","status":"live","subcategory":"Manual Rápido","subcategory_zh":"速查手册","subcategory_en":"Cheat Sheet","ui_url":"/es/tools/mime_type/","ui_url_en":"/en/tools/mime_type/","ui_url_zh":"/tools/mime_type/"},{"api_url":"/api/lvpings/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758357600000,"description":"Free online Screen Recorder. Capture your browser screen for tutorials, demos or bug reports with no install required.","description_zh":"网页端屏幕录制工具","frontend_only":true,"lang":"es","method":"NONE","name":"在线录屏","name_zh":"在线录屏","name_en":"Screen Recorder","schema_url":"/es/tools/lvpings/schema.json","schema_url_en":"/en/tools/lvpings/schema.json","schema_url_zh":"/tools/lvpings/schema.json","slug":"lvpings","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/lvpings/","ui_url_en":"/en/tools/lvpings/","ui_url_zh":"/tools/lvpings/"},{"api_url":"/api/lubanchi/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758354000000,"description":"Free online Luban Ruler tool. Traditional Chinese ruler for feng shui auspicious length, distinguishes Yang ruler (Luban) and Yin ruler (Dinglan).","description_zh":"在线鲁班尺工具，基于传统鲁班尺8字计算原理，输入长度自动判断吉凶，区分阳尺与阴尺（丁兰尺）。","frontend_only":true,"lang":"es","method":"NONE","name":"鲁班尺","name_zh":"鲁班尺","name_en":"Luban Ruler","schema_url":"/es/tools/lubanchi/schema.json","schema_url_en":"/en/tools/lubanchi/schema.json","schema_url_zh":"/tools/lubanchi/schema.json","slug":"lubanchi","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/lubanchi/","ui_url_en":"/en/tools/lubanchi/","ui_url_zh":"/tools/lubanchi/"},{"api_url":"/api/liangs/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758350400000,"description":"Free online Keep Screen On tool. Prevent your screen from sleeping or dimming with one click, runs entirely in the browser.","description_zh":"防止屏幕休眠息屏，保持屏幕常亮","frontend_only":true,"lang":"es","method":"NONE","name":"屏幕常亮","name_zh":"屏幕常亮","name_en":"Keep Screen On","schema_url":"/es/tools/liangs/schema.json","schema_url_en":"/en/tools/liangs/schema.json","schema_url_zh":"/tools/liangs/schema.json","slug":"liangs","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/liangs/","ui_url_en":"/en/tools/liangs/","ui_url_zh":"/tools/liangs/"},{"api_url":"/api/laohuangli/","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":1758346800000,"description":"Free online Chinese Almanac. 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Pure frontend, data stays local.","description_zh":"在线 JWT 解码工具，无需验证签名即可解析 Header、Payload 内容，纯前端处理，数据不外传。","frontend_only":true,"lang":"es","method":"NONE","name":"JWT 解码","name_zh":"JWT 解码","name_en":"JWT Decode","schema_url":"/es/tools/jwt_decode/schema.json","schema_url_en":"/en/tools/jwt_decode/schema.json","schema_url_zh":"/tools/jwt_decode/schema.json","slug":"jwt_decode","status":"live","subcategory":"Análisis JWT/Cron","subcategory_zh":"JWT/Cron 解析","subcategory_en":"JWT / Cron Parser","ui_url":"/es/tools/jwt_decode/","ui_url_en":"/en/tools/jwt_decode/","ui_url_zh":"/tools/jwt_decode/"},{"api_url":"/api/json_formatter/","category":"Conversión de Datos","category_zh":"数据转换","createdAt":1758328800000,"description":"Free online JSON Formatter. Validate JSON syntax, beautify with indentation or minify to one line. 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Convert between JSON arrays and CSV tables with automatic escaping for commas, quotes and newlines.","description_zh":"在线将 JSON 数组与 CSV 表格互转，支持复杂字段（逗号/引号/换行）自动转义。","frontend_only":true,"lang":"es","method":"NONE","name":"JSON↔CSV互转","name_zh":"JSON↔CSV互转","name_en":"JSON CSV","schema_url":"/es/tools/json_csv/schema.json","schema_url_en":"/en/tools/json_csv/schema.json","schema_url_zh":"/tools/json_csv/schema.json","slug":"json_csv","status":"live","subcategory":"Conversión de Formato","subcategory_zh":"格式互转","subcategory_en":"Format Convert","ui_url":"/es/tools/json_csv/","ui_url_en":"/en/tools/json_csv/","ui_url_zh":"/tools/json_csv/"},{"api_url":"/api/jiezhilongs/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758321600000,"description":"Free online Ring Size Chart. 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Quick reference for the 60 combinations of Heavenly Stems and Earthly Branches used in the Chinese calendar.","description_zh":"天干地支组合速查表","frontend_only":true,"lang":"es","method":"NONE","name":"六十甲子","name_zh":"六十甲子","name_en":"60 Jiazi Cycle","schema_url":"/es/tools/jiazitable/schema.json","schema_url_en":"/en/tools/jiazitable/schema.json","schema_url_zh":"/tools/jiazitable/schema.json","slug":"jiazitable","status":"live","subcategory":"Destino Oriental","subcategory_zh":"东方命理","subcategory_en":"Eastern Fortune","ui_url":"/es/tools/jiazitable/","ui_url_en":"/en/tools/jiazitable/","ui_url_zh":"/tools/jiazitable/"},{"api_url":"/api/jiaqi/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758314400000,"description":"Free online Chinese Holiday Calendar. Look up official public holiday schedules for 2025 and 2026 with work-day makeup arrangements.","description_zh":"查询2025/2026年法定节假日放假安排","frontend_only":true,"lang":"es","method":"NONE","name":"放假安排查询","name_zh":"放假安排查询","name_en":"Chinese Holiday Calendar","schema_url":"/es/tools/jiaqi/schema.json","schema_url_en":"/en/tools/jiaqi/schema.json","schema_url_zh":"/tools/jiaqi/schema.json","slug":"jiaqi","status":"live","subcategory":"Características Chinas","subcategory_zh":"中国特色","subcategory_en":"China Special","ui_url":"/es/tools/jiaqi/","ui_url_en":"/en/tools/jiaqi/","ui_url_zh":"/tools/jiaqi/"},{"api_url":"/api/jianpan/","category":"Herramientas de Desarrollo","category_zh":"开发工具","createdAt":1758310800000,"description":"Free online Keyboard Tester. Inspect keyCode, key and code attributes for each keypress, and verify keyboard hardware. 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Pure frontend, data stays local.","description_zh":"在线 HTML 特殊字符转义工具，将 HTML 特殊字符转为实体引用（&amp; &lt; &gt; &quot; &#39;）或还原，纯前端处理，数据不外传。","frontend_only":true,"lang":"es","method":"NONE","name":"HTML 转义/反转义","name_zh":"HTML 转义/反转义","name_en":"HTML Escape","schema_url":"/es/tools/html_escape/schema.json","schema_url_en":"/en/tools/html_escape/schema.json","schema_url_zh":"/tools/html_escape/schema.json","slug":"html_escape","status":"live","subcategory":"Codificación de Escape","subcategory_zh":"转义编码","subcategory_en":"Escape & Encode","ui_url":"/es/tools/html_escape/","ui_url_en":"/en/tools/html_escape/","ui_url_zh":"/tools/html_escape/"},{"api_url":"/api/hash/","category":"Conversión de Datos","category_zh":"数据转换","createdAt":1758303600000,"description":"Free online Hash Calculator. Compute MD5, SHA1, SHA256, SHA384 and SHA512 digests in your browser. Pure frontend, no signup, instant result.","description_zh":"在线 Hash 计算工具，支持 MD5、SHA1、SHA256、SHA384、SHA512 多种算法，纯前端处理，数据不外传。","frontend_only":true,"lang":"es","method":"NONE","name":"Hash 计算器","name_zh":"Hash 计算器","name_en":"Hash Calculator","schema_url":"/es/tools/hash/schema.json","schema_url_en":"/en/tools/hash/schema.json","schema_url_zh":"/tools/hash/schema.json","slug":"hash","status":"live","subcategory":"Conversión de Formato","subcategory_zh":"格式互转","subcategory_en":"Format Convert","ui_url":"/es/tools/hash/","ui_url_en":"/en/tools/hash/","ui_url_zh":"/tools/hash/"},{"api_url":"/api/fuhao/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758300000000,"description":"Free online Special Symbols picker. One-click copy of math symbols, arrows, punctuation, currency and Greek letters grouped by category.","description_zh":"常用符号快捷复制，包含数学符号、箭头、标点、货币、希腊字母等分类。","frontend_only":true,"lang":"es","method":"NONE","name":"特殊符号大全","name_zh":"特殊符号大全","name_en":"Special Symbols","schema_url":"/es/tools/fuhao/schema.json","schema_url_en":"/en/tools/fuhao/schema.json","schema_url_zh":"/tools/fuhao/schema.json","slug":"fuhao","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/fuhao/","ui_url_en":"/en/tools/fuhao/","ui_url_zh":"/tools/fuhao/"},{"api_url":"/api/fanying/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758296400000,"description":"Free online Reaction Time Test. Measure your reflexes in milliseconds. Click as soon as the screen changes, average over 5 rounds. No signup.","description_zh":"在线测试你的反应速度（毫秒）。屏幕变色的瞬间点击，记录反应时间，5轮测试取平均值。无须注册，即开即用。","frontend_only":true,"lang":"es","method":"NONE","name":"反应速度测试","name_zh":"反应速度测试","name_en":"Reaction Time Test","schema_url":"/es/tools/fanying/schema.json","schema_url_en":"/en/tools/fanying/schema.json","schema_url_zh":"/tools/fanying/schema.json","slug":"fanying","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/fanying/","ui_url_en":"/en/tools/fanying/","ui_url_zh":"/tools/fanying/"},{"api_url":"/api/ershisiijieqi/","category":"Hora y Fecha","category_zh":"时间日期","createdAt":1758292800000,"description":"Free online 24 Solar Terms lookup. 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Browse emojis by category and copy any emoji to clipboard with a single click, perfect for chat and social posts.","description_zh":"在线 Emoji 表情选择器，支持分类浏览和一键复制，点击任意表情即可复制到剪贴板。","frontend_only":true,"lang":"es","method":"NONE","name":"Emoji 表情选择器","name_zh":"Emoji 表情选择器","name_en":"Emoji Picker","schema_url":"/es/tools/emoji/schema.json","schema_url_en":"/en/tools/emoji/schema.json","schema_url_zh":"/tools/emoji/schema.json","slug":"emoji","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/emoji/","ui_url_en":"/en/tools/emoji/","ui_url_zh":"/tools/emoji/"},{"api_url":"/api/dianziqianming/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758285600000,"description":"Free online Digital Signature generator. 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Display scrolling text full-screen for concerts, cheering and live event atmospheres.","description_zh":"滚动文字全屏展示，演唱会/应援场景","frontend_only":true,"lang":"es","method":"NONE","name":"手持弹幕","name_zh":"手持弹幕","name_en":"Handheld Danmaku","schema_url":"/es/tools/danmu/schema.json","schema_url_en":"/en/tools/danmu/schema.json","schema_url_zh":"/tools/danmu/schema.json","slug":"danmu","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/danmu/","ui_url_en":"/en/tools/danmu/","ui_url_zh":"/tools/danmu/"},{"api_url":"/api/cron_parser/","category":"Conversión de Datos","category_zh":"数据转换","createdAt":1758271200000,"description":"Free online Cron Parser. Parse 5-field or 6-field cron expressions and visualize the next execution times. 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Screen-calibrated ruler for measuring any object length in centimeters and inches directly in the browser.","description_zh":"免费在线尺子测量工具，支持屏幕校准，可测量任意物体长度。厘米/英寸双刻度显示。","frontend_only":true,"lang":"es","method":"NONE","name":"在线尺子","name_zh":"在线尺子","name_en":"Online Ruler","schema_url":"/es/tools/chizi/schema.json","schema_url_en":"/en/tools/chizi/schema.json","schema_url_zh":"/tools/chizi/schema.json","slug":"chizi","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/chizi/","ui_url_en":"/en/tools/chizi/","ui_url_zh":"/tools/chizi/"},{"api_url":"/api/chepai/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758260400000,"description":"Free online License Plate Lookup. 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Reference table for men's and women's shirt sizes in S, M, L, XL with chest and length measurements.","description_zh":"男女衬衫尺码S/M/L/XL对照表","frontend_only":true,"lang":"es","method":"NONE","name":"衬衫尺码对照","name_zh":"衬衫尺码对照","name_en":"Shirt Size Chart","schema_url":"/es/tools/changxiuduanxiuchimas/schema.json","schema_url_en":"/en/tools/changxiuduanxiuchimas/schema.json","schema_url_zh":"/tools/changxiuduanxiuchimas/schema.json","slug":"changxiuduanxiuchimas","status":"live","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/changxiuduanxiuchimas/","ui_url_en":"/en/tools/changxiuduanxiuchimas/","ui_url_zh":"/tools/changxiuduanxiuchimas/"},{"api_url":"/api/calc_tvjuli/","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1758253200000,"description":"Free online Calc Tvjuli tool. 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Pure frontend.","description_zh":"在线吸烟成本计算器，输入每日根数与烟价一键算总成本（年/10年/20年），含省钱/健康激励，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"吸烟成本计算器","name_zh":"吸烟成本计算器","name_en":"Smoking Cost Calculator","schema_url":"/es/tools/xiangyan/schema.json","schema_url_en":"/en/tools/xiangyan/schema.json","schema_url_zh":"/tools/xiangyan/schema.json","slug":"xiangyan","status":"active","subcategory":"Cálculo Divertido","subcategory_zh":"趣味计算","subcategory_en":"Fun Calc","ui_url":"/es/tools/xiangyan/","ui_url_en":"/en/tools/xiangyan/","ui_url_zh":"/tools/xiangyan/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780410442000,"description":"Free online sound speed. Input air temperature to compute the speed of sound based on thermodynamic formula. Pure frontend, no upload required.","description_zh":"在线声速计算工具，输入空气温度一键求声速（基于热力学公式），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"声速计算","name_zh":"声速计算","name_en":"Sound Speed Calculator","schema_url":"/es/tools/shengsu/schema.json","schema_url_en":"/en/tools/shengsu/schema.json","schema_url_zh":"/tools/shengsu/schema.json","slug":"shengsu","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/shengsu/","ui_url_en":"/en/tools/shengsu/","ui_url_zh":"/tools/shengsu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780411042000,"description":"Free online Brinell hardness calculator. Input load and indentation diameter to compute Brinell Hardness Number HB (steel ball D=10mm). Pure frontend processing.","description_zh":"在线布氏硬度计算工具，输入载荷与压痕直径一键求布氏硬度 HB（钢球 D=10mm），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"布氏硬度计算","name_zh":"布氏硬度计算","name_en":"Bushi Yingdu","schema_url":"/es/tools/bushi_yingdu/schema.json","schema_url_en":"/en/tools/bushi_yingdu/schema.json","schema_url_zh":"/tools/bushi_yingdu/schema.json","slug":"bushi_yingdu","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/bushi_yingdu/","ui_url_en":"/en/tools/bushi_yingdu/","ui_url_zh":"/tools/bushi_yingdu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780411642000,"description":"Free online water hardness converter. Input calcium and magnesium concentration to compute German, French, English degrees and mmol/L. Pure frontend processing.","description_zh":"在线水的硬度换算工具，输入钙镁浓度一键求德国度/法国度/英国度/mmol/L，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"水的硬度换算","name_zh":"水的硬度换算","name_en":"Shui Yingdu","schema_url":"/es/tools/shui_yingdu/schema.json","schema_url_en":"/en/tools/shui_yingdu/schema.json","schema_url_zh":"/tools/shui_yingdu/schema.json","slug":"shui_yingdu","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/shui_yingdu/","ui_url_en":"/en/tools/shui_yingdu/","ui_url_zh":"/tools/shui_yingdu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780412242000,"description":"Free online paper GSM and thickness converter. Supports bidirectional calculation (g/m² ↔ μm) for paper weight and caliper. Pure frontend processing, no upload.","description_zh":"在线纸张克重与厚度换算工具，支持双向计算 (g/m² ↔ μm)，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"纸张克重厚度","name_zh":"纸张克重厚度","name_en":"Paper GSM Calculator","schema_url":"/es/tools/zhizhang/schema.json","schema_url_en":"/en/tools/zhizhang/schema.json","schema_url_zh":"/tools/zhizhang/schema.json","slug":"zhizhang","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/zhizhang/","ui_url_en":"/en/tools/zhizhang/","ui_url_zh":"/tools/zhizhang/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780412842000,"description":"Free online wood density calculator. Input mass and volume to compute density. Pure frontend processing; ideal for wood identification and engineering projects.","description_zh":"在线木材密度计算工具，输入质量与体积一键求密度，纯前端处理，适合木材鉴别与工程。","frontend_only":true,"lang":"es","method":"NONE","name":"木材密度","name_zh":"木材密度","name_en":"Mucai Midu","schema_url":"/es/tools/mucai_midu/schema.json","schema_url_en":"/en/tools/mucai_midu/schema.json","schema_url_zh":"/tools/mucai_midu/schema.json","slug":"mucai_midu","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/mucai_midu/","ui_url_en":"/en/tools/mucai_midu/","ui_url_zh":"/tools/mucai_midu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780413442000,"description":"Free online stainless steel plate weight calculator. Input length, width, and thickness to compute weight (based on 7.93 g/cm³ 304 SS density). Pure frontend, no upload.","description_zh":"在线不锈钢板重量计算工具，输入长宽厚一键求重量（基于 7.93 g/cm³ 304 不锈钢密度），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"不锈钢板重量","name_zh":"不锈钢板重量","name_en":"Buxiugang Ban","schema_url":"/es/tools/buxiugang_ban/schema.json","schema_url_en":"/en/tools/buxiugang_ban/schema.json","schema_url_zh":"/tools/buxiugang_ban/schema.json","slug":"buxiugang_ban","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/buxiugang_ban/","ui_url_en":"/en/tools/buxiugang_ban/","ui_url_zh":"/tools/buxiugang_ban/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780414042000,"description":"Free online stainless steel round tube weight calculator. Input OD, wall thickness, and length to compute weight (7.93 g/cm³ 304 SS). Pure frontend, no upload.","description_zh":"在线不锈钢圆管重量计算工具，输入外径/壁厚/长度一键求重量（基于 7.93 g/cm³ 304 不锈钢），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"不锈钢圆管重量","name_zh":"不锈钢圆管重量","name_en":"Buxiugang Yuanguan","schema_url":"/es/tools/buxiugang_yuanguan/schema.json","schema_url_en":"/en/tools/buxiugang_yuanguan/schema.json","schema_url_zh":"/tools/buxiugang_yuanguan/schema.json","slug":"buxiugang_yuanguan","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/buxiugang_yuanguan/","ui_url_en":"/en/tools/buxiugang_yuanguan/","ui_url_zh":"/tools/buxiugang_yuanguan/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780414642000,"description":"Free online stainless steel square tube weight calculator. Input side length, wall thickness, and length to compute weight (7.93 g/cm³ 304 SS). Pure frontend, no upload.","description_zh":"在线不锈钢方管重量计算工具，输入边长/壁厚/长度一键求重量（基于 7.93 g/cm³ 304 不锈钢），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"不锈钢方管重量","name_zh":"不锈钢方管重量","name_en":"Buxiugang Fangguan","schema_url":"/es/tools/buxiugang_fangguan/schema.json","schema_url_en":"/en/tools/buxiugang_fangguan/schema.json","schema_url_zh":"/tools/buxiugang_fangguan/schema.json","slug":"buxiugang_fangguan","status":"active","subcategory":"Cálculo de Ingeniería","subcategory_zh":"工程计算","subcategory_en":"Engineering","ui_url":"/es/tools/buxiugang_fangguan/","ui_url_en":"/en/tools/buxiugang_fangguan/","ui_url_zh":"/tools/buxiugang_fangguan/"},{"api_url":null,"category":"Herramientas de Imágenes","category_zh":"图片工具","createdAt":1780415242000,"description":"Free online wallpaper quantity. Input room perimeter and wall height to compute rolls needed (estimated at 0.53×10m per roll), with waste allowance.","description_zh":"在线壁纸用量计算工具，输入房间周长与墙高一键算壁纸卷数（按 0.53×10m/卷 估算），含损耗。","frontend_only":true,"lang":"es","method":"NONE","name":"壁纸用量计算","name_zh":"壁纸用量计算","name_en":"Wallpaper Calculator","schema_url":"/es/tools/bizhi/schema.json","schema_url_en":"/en/tools/bizhi/schema.json","schema_url_zh":"/tools/bizhi/schema.json","slug":"bizhi","status":"active","subcategory":"Referencia de Color","subcategory_zh":"颜色参考","subcategory_en":"Color Reference","ui_url":"/es/tools/bizhi/","ui_url_en":"/en/tools/bizhi/","ui_url_zh":"/tools/bizhi/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780415842000,"description":"Free online curtain fabric. Input total window width and fold multiplier to compute fabric panels needed (with waste allowance). Pure frontend.","description_zh":"在线窗帘用量计算工具，输入窗户总宽与褶皱倍数一键算布幅数（含损耗），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"窗帘用量计算","name_zh":"窗帘用量计算","name_en":"Curtain Calculator","schema_url":"/es/tools/chuanglian/schema.json","schema_url_en":"/en/tools/chuanglian/schema.json","schema_url_zh":"/tools/chuanglian/schema.json","slug":"chuanglian","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/chuanglian/","ui_url_en":"/en/tools/chuanglian/","ui_url_zh":"/tools/chuanglian/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780416442000,"description":"Free online flooring quantity. Input room area and plank area to compute plank count (with 8% waste allowance). Pure frontend, no upload.","description_zh":"在线地板用量计算工具，输入房间面积与单片面积一键算片数（含 8% 损耗），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"地板用量计算","name_zh":"地板用量计算","name_en":"Flooring Calculator","schema_url":"/es/tools/diban/schema.json","schema_url_en":"/en/tools/diban/schema.json","schema_url_zh":"/tools/diban/schema.json","slug":"diban","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/diban/","ui_url_en":"/en/tools/diban/","ui_url_zh":"/tools/diban/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780417042000,"description":"Free online floor tile quantity. Input room area and tile area to compute tile count (with 10% waste allowance). Pure frontend, no upload.","description_zh":"在线地砖用量计算工具，输入房间面积与单片面积一键算片数（含 10% 损耗），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"地砖用量计算","name_zh":"地砖用量计算","name_en":"Floor Tile Calculator","schema_url":"/es/tools/dizhuan/schema.json","schema_url_en":"/en/tools/dizhuan/schema.json","schema_url_zh":"/tools/dizhuan/schema.json","slug":"dizhuan","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/dizhuan/","ui_url_en":"/en/tools/dizhuan/","ui_url_zh":"/tools/dizhuan/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780417642000,"description":"Free online wall tile quantity. Input wall area and tile area to compute tile count (with 8% waste allowance). Pure frontend, no upload.","description_zh":"在线墙砖用量计算工具，输入墙面面积与单片面积一键算片数（含 8% 损耗），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"墙砖用量计算","name_zh":"墙砖用量计算","name_en":"Wall Tile Calculator","schema_url":"/es/tools/qiangzhuan/schema.json","schema_url_en":"/en/tools/qiangzhuan/schema.json","schema_url_zh":"/tools/qiangzhuan/schema.json","slug":"qiangzhuan","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/qiangzhuan/","ui_url_en":"/en/tools/qiangzhuan/","ui_url_zh":"/tools/qiangzhuan/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780418242000,"description":"Free online paint coverage. Input wall area and coverage rate to compute paint liters needed (with 10% waste allowance). Pure frontend, no upload.","description_zh":"在线涂料用量计算工具，输入涂刷面积与涂布率一键算涂料升数（含 10% 损耗），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"涂料用量计算","name_zh":"涂料用量计算","name_en":"Paint Calculator","schema_url":"/es/tools/tuliao/schema.json","schema_url_en":"/en/tools/tuliao/schema.json","schema_url_zh":"/tools/tuliao/schema.json","slug":"tuliao","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/tuliao/","ui_url_en":"/en/tools/tuliao/","ui_url_zh":"/tools/tuliao/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780418842000,"description":"Free online auto loan. Input principal, rate, and term to compute monthly payment and total interest (equal installment). Pure frontend, no upload.","description_zh":"在线车贷计算器，输入本金/利率/年限一键算月供/总利息（等额本息），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"车贷计算器","name_zh":"车贷计算器","name_en":"Auto Loan Calculator","schema_url":"/es/tools/chedai/schema.json","schema_url_en":"/en/tools/chedai/schema.json","schema_url_zh":"/tools/chedai/schema.json","slug":"chedai","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/chedai/","ui_url_en":"/en/tools/chedai/","ui_url_zh":"/tools/chedai/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780419442000,"description":"Free online mortgage loan calculator. Input principal, rate, and term to compute monthly payment and total interest (equal installment). Pure frontend, no upload.","description_zh":"在线按揭贷款计算器，输入本金/利率/年限一键算月供/总利息（等额本息），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"按揭贷款计算器","name_zh":"按揭贷款计算器","name_en":"Daikuan Anjie","schema_url":"/es/tools/daikuan_anjie/schema.json","schema_url_en":"/en/tools/daikuan_anjie/schema.json","schema_url_zh":"/tools/daikuan_anjie/schema.json","slug":"daikuan_anjie","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/daikuan_anjie/","ui_url_en":"/en/tools/daikuan_anjie/","ui_url_zh":"/tools/daikuan_anjie/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780420042000,"description":"Free online annual/monthly/daily interest rate converter. Convert annual ↔ monthly ↔ daily rates with both simple and compound interest modes. Pure frontend, no upload.","description_zh":"在线年/月/日利率互转工具，年利率 ↔ 月利率 ↔ 日利率（按复利与单利两种模式），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"年/月/日利率互转","name_zh":"年/月/日利率互转","name_en":"Lilv Zhuanhuan","schema_url":"/es/tools/lilv_zhuanhuan/schema.json","schema_url_en":"/en/tools/lilv_zhuanhuan/schema.json","schema_url_zh":"/tools/lilv_zhuanhuan/schema.json","slug":"lilv_zhuanhuan","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/lilv_zhuanhuan/","ui_url_en":"/en/tools/lilv_zhuanhuan/","ui_url_zh":"/tools/lilv_zhuanhuan/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780420642000,"description":"Free online loan interest rate converter. Convert between annual, monthly, and daily rates (simple and compound). Pure frontend processing, no upload.","description_zh":"在线贷款利率转换工具，年利率/月利率/日利率互转（单利/复利），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"贷款利率转换","name_zh":"贷款利率转换","name_en":"Daikuan Lilv","schema_url":"/es/tools/daikuan_lilv/schema.json","schema_url_en":"/en/tools/daikuan_lilv/schema.json","schema_url_zh":"/tools/daikuan_lilv/schema.json","slug":"daikuan_lilv","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/daikuan_lilv/","ui_url_en":"/en/tools/daikuan_lilv/","ui_url_zh":"/tools/daikuan_lilv/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780421242000,"description":"Free online informal rate to percentage converter. Convert colloquial rates (e.g., 1 fen) into standard annual/monthly percentages (e.g., 1 fen = 2% monthly). Pure frontend.","description_zh":"在线民间利率转百分比工具，将民间一分/一厘等口算利率转为标准年/月利率百分比（如 1分=2% 月），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"民间利率转百分比","name_zh":"民间利率转百分比","name_en":"Lilv Baifenbi","schema_url":"/es/tools/lilv_baifenbi/schema.json","schema_url_en":"/en/tools/lilv_baifenbi/schema.json","schema_url_zh":"/tools/lilv_baifenbi/schema.json","slug":"lilv_baifenbi","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/lilv_baifenbi/","ui_url_en":"/en/tools/lilv_baifenbi/","ui_url_zh":"/tools/lilv_baifenbi/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780421842000,"description":"Free online percentage to informal rate converter. Convert standard annual/monthly interest rates into colloquial fen/li forms (e.g., 12% yearly = 1 fen monthly). Pure frontend.","description_zh":"在线百分比利率转民间口算工具，将标准年/月利率转为民间一分/一厘等口算形式（如 12% 年=1分月），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"百分比利率转民间","name_zh":"百分比利率转民间","name_en":"Baifenbi Lilv","schema_url":"/es/tools/baifenbi_lilv/schema.json","schema_url_en":"/en/tools/baifenbi_lilv/schema.json","schema_url_zh":"/tools/baifenbi_lilv/schema.json","slug":"baifenbi_lilv","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/baifenbi_lilv/","ui_url_en":"/en/tools/baifenbi_lilv/","ui_url_zh":"/tools/baifenbi_lilv/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780422442000,"description":"Free online annualized return calculator. Input principal, profit, and days to compute annualized return (with simple and compound modes). Pure frontend, no upload.","description_zh":"在线年化收益率计算工具，输入本金/收益/天数一键算年化收益率（含简单/复利 2 模式），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"年化收益率","name_zh":"年化收益率","name_en":"Nianhua Shouyi","schema_url":"/es/tools/nianhua_shouyi/schema.json","schema_url_en":"/en/tools/nianhua_shouyi/schema.json","schema_url_zh":"/tools/nianhua_shouyi/schema.json","slug":"nianhua_shouyi","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/nianhua_shouyi/","ui_url_en":"/en/tools/nianhua_shouyi/","ui_url_zh":"/tools/nianhua_shouyi/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780423042000,"description":"Free online compound interest. Input principal, rate, and years to compute total amount, total profit, and interest ratio (annual compounding). Pure frontend, no upload.","description_zh":"在线复利计算器，输入本金/利率/年数一键算本息合计/总收益/利息占比（年复利），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"复利计算器","name_zh":"复利计算器","name_en":"Compound Interest Calculator","schema_url":"/es/tools/fuli/schema.json","schema_url_en":"/en/tools/fuli/schema.json","schema_url_zh":"/tools/fuli/schema.json","slug":"fuli","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/fuli/","ui_url_en":"/en/tools/fuli/","ui_url_zh":"/tools/fuli/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780423642000,"description":"Free online demand deposit interest calculator. Input principal, rate, and term to compute principal plus interest (enter your current demand rate). Pure frontend.","description_zh":"在线活期存款利息计算工具，输入本金/利率/年限一键算本息（需自填当前活期利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"活期存款利息","name_zh":"活期存款利息","name_en":"Huoqi Cunkuan","schema_url":"/es/tools/huoqi_cunkuan/schema.json","schema_url_en":"/en/tools/huoqi_cunkuan/schema.json","schema_url_zh":"/tools/huoqi_cunkuan/schema.json","slug":"huoqi_cunkuan","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/huoqi_cunkuan/","ui_url_en":"/en/tools/huoqi_cunkuan/","ui_url_zh":"/tools/huoqi_cunkuan/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780424242000,"description":"Free online lump-sum deposit interest calculator. Input principal, rate, and term to compute principal plus interest (enter your current deposit rate). Pure frontend.","description_zh":"在线整存整取利息计算工具，输入本金/利率/年限一键算本息（需自填当前存款利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"整存整取利息","name_zh":"整存整取利息","name_en":"Zhengcun Zhengqu","schema_url":"/es/tools/zhengcun_zhengqu/schema.json","schema_url_en":"/en/tools/zhengcun_zhengqu/schema.json","schema_url_zh":"/tools/zhengcun_zhengqu/schema.json","slug":"zhengcun_zhengqu","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/zhengcun_zhengqu/","ui_url_en":"/en/tools/zhengcun_zhengqu/","ui_url_zh":"/tools/zhengcun_zhengqu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780424842000,"description":"Free online installment savings interest calculator. Input principal, rate, and term to compute principal plus interest (enter your current deposit rate). Pure frontend.","description_zh":"在线零存整取利息计算工具，输入本金/利率/年限一键算本息（需自填当前存款利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"零存整取利息","name_zh":"零存整取利息","name_en":"Lingcun Zhengqu","schema_url":"/es/tools/lingcun_zhengqu/schema.json","schema_url_en":"/en/tools/lingcun_zhengqu/schema.json","schema_url_zh":"/tools/lingcun_zhengqu/schema.json","slug":"lingcun_zhengqu","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/lingcun_zhengqu/","ui_url_en":"/en/tools/lingcun_zhengqu/","ui_url_zh":"/tools/lingcun_zhengqu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780425442000,"description":"Free online lump-deposit installment-withdrawal calculator. Input principal, rate, and term to compute principal plus interest (enter current deposit rate). Pure frontend.","description_zh":"在线整存零取利息计算工具，输入本金/利率/年限一键算本息（需自填当前存款利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"整存零取利息","name_zh":"整存零取利息","name_en":"Zhengcun Lingqu","schema_url":"/es/tools/zhengcun_lingqu/schema.json","schema_url_en":"/en/tools/zhengcun_lingqu/schema.json","schema_url_zh":"/tools/zhengcun_lingqu/schema.json","slug":"zhengcun_lingqu","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/zhengcun_lingqu/","ui_url_en":"/en/tools/zhengcun_lingqu/","ui_url_zh":"/tools/zhengcun_lingqu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780426042000,"description":"Free online principal-deposit interest-withdrawal calculator. Input principal, rate, and term to compute principal plus interest (enter current deposit rate). Pure frontend.","description_zh":"在线存本取息利息计算工具，输入本金/利率/年限一键算本息（需自填当前存款利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"存本取息利息","name_zh":"存本取息利息","name_en":"Cunben Quxi","schema_url":"/es/tools/cunben_quxi/schema.json","schema_url_en":"/en/tools/cunben_quxi/schema.json","schema_url_zh":"/tools/cunben_quxi/schema.json","slug":"cunben_quxi","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/cunben_quxi/","ui_url_en":"/en/tools/cunben_quxi/","ui_url_zh":"/tools/cunben_quxi/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780426642000,"description":"Free online notice deposit interest calculator. Input principal, rate, and term to compute principal plus interest (enter your current deposit rate). 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Pure frontend.","description_zh":"在线定活两便利息计算工具，输入本金/利率/年限一键算本息（需自填当前存款利率），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"定活两便利息","name_zh":"定活两便利息","name_en":"Dinghuo Liangbian","schema_url":"/es/tools/dinghuo_liangbian/schema.json","schema_url_en":"/en/tools/dinghuo_liangbian/schema.json","schema_url_zh":"/tools/dinghuo_liangbian/schema.json","slug":"dinghuo_liangbian","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/dinghuo_liangbian/","ui_url_en":"/en/tools/dinghuo_liangbian/","ui_url_zh":"/tools/dinghuo_liangbian/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780427842000,"description":"Free online government bond yield calculator. Input principal, rate, and term to compute yield (electronic bond, simple interest; enter current bond rate). 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Pure frontend, no upload.","description_zh":"在线零息国债收益计算工具，输入本金/利率/年限一键算收益（贴现发行），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"零息国债收益计算器","name_zh":"零息国债收益计算器","name_en":"Guozhai Lingxi","schema_url":"/es/tools/guozhai_lingxi/schema.json","schema_url_en":"/en/tools/guozhai_lingxi/schema.json","schema_url_zh":"/tools/guozhai_lingxi/schema.json","slug":"guozhai_lingxi","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/guozhai_lingxi/","ui_url_en":"/en/tools/guozhai_lingxi/","ui_url_zh":"/tools/guozhai_lingxi/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780429042000,"description":"Free online coupon bond yield calculator. Input principal, rate, and term to compute annual coupon payment and total yield. Pure frontend, no upload.","description_zh":"在线附息国债收益计算工具，输入本金/利率/年限一键算年付息+总收益，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"附息国债收益计算器","name_zh":"附息国债收益计算器","name_en":"Guozhai Fuxi","schema_url":"/es/tools/guozhai_fuxi/schema.json","schema_url_en":"/en/tools/guozhai_fuxi/schema.json","schema_url_zh":"/tools/guozhai_fuxi/schema.json","slug":"guozhai_fuxi","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/guozhai_fuxi/","ui_url_en":"/en/tools/guozhai_fuxi/","ui_url_zh":"/tools/guozhai_fuxi/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780429642000,"description":"Free online gold investment. Input buy/sell price and grams to compute profit (manual entry of spot gold price required). Pure frontend, no upload.","description_zh":"在线黄金理财计算工具，输入买入价/卖出价/克数一键算收益（⚠️ 需用户自填当时金价），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"黄金理财计算器","name_zh":"黄金理财计算器","name_en":"Gold Investment Calculator","schema_url":"/es/tools/huangjin/schema.json","schema_url_en":"/en/tools/huangjin/schema.json","schema_url_zh":"/tools/huangjin/schema.json","slug":"huangjin","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/huangjin/","ui_url_en":"/en/tools/huangjin/","ui_url_zh":"/tools/huangjin/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780430242000,"description":"Free online education savings interest calculator (note: discontinued in 2014; reference only). Input principal, rate, and term to compute total. Pure frontend.","description_zh":"在线教育储蓄利息计算工具（⚠️ 教育储蓄 2014 年已废止，本工具仅作历史参考），输入本金/利率/年限一键算本息，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"教育储蓄利息","name_zh":"教育储蓄利息","name_en":"Jiaoyu Chuxu","schema_url":"/es/tools/jiaoyu_chuxu/schema.json","schema_url_en":"/en/tools/jiaoyu_chuxu/schema.json","schema_url_zh":"/tools/jiaoyu_chuxu/schema.json","slug":"jiaoyu_chuxu","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/jiaoyu_chuxu/","ui_url_en":"/en/tools/jiaoyu_chuxu/","ui_url_zh":"/tools/jiaoyu_chuxu/"},{"api_url":null,"category":"Calculadoras","category_zh":"计算工具","createdAt":1780430842000,"description":"Free online sales tax calculator (note: replaced by VAT since May 1, 2016; reference only). Includes tax rate tables. Pure frontend, no upload required.","description_zh":"在线营业税计算工具（⚠️ 营业税 2016 年 5 月 1 日起已改征增值税，本工具仅作历史参考），含税率表，纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"营业税计算","name_zh":"营业税计算","name_en":"Sales Tax Calculator","schema_url":"/es/tools/yys/schema.json","schema_url_en":"/en/tools/yys/schema.json","schema_url_zh":"/tools/yys/schema.json","slug":"yys","status":"active","subcategory":"Cálculo Financiero","subcategory_zh":"金融计算","subcategory_en":"Finance","ui_url":"/es/tools/yys/","ui_url_en":"/en/tools/yys/","ui_url_zh":"/tools/yys/"},{"api_url":null,"category":"Herramientas de Red","category_zh":"网络工具","createdAt":1780431442000,"description":"Free online Chmod permission calculator. Toggle 3 user types (owner/group/other) and 3 permission bits (r/w/x); outputs octal (755/644, etc.) and symbolic (u+x). Pure frontend.","description_zh":"在线 Chmod 权限计算工具，支持 3 类用户（owner/group/other）3 类权限（r/w/x）勾选，输出八进制（755/644 等）与符号命令（u+x），纯前端处理。","frontend_only":true,"lang":"es","method":"NONE","name":"Chmod计算器","name_zh":"Chmod计算器","name_en":"Calc Chmod","schema_url":"/es/tools/calc_chmod/schema.json","schema_url_en":"/en/tools/calc_chmod/schema.json","schema_url_zh":"/tools/calc_chmod/schema.json","slug":"calc_chmod","status":"active","subcategory":"Dominio/IP","subcategory_zh":"域名/IP","subcategory_en":"Domain / IP","ui_url":"/es/tools/calc_chmod/","ui_url_en":"/en/tools/calc_chmod/","ui_url_zh":"/tools/calc_chmod/"},{"api_url":null,"category":"Vida y Utilidad","category_zh":"生活查询","createdAt":1780432042000,"description":"Free online screen PPI. Input resolution width, height, and diagonal size to compute pixel density (PPI = √(w²+h²)/d). Pure frontend, no upload.","description_zh":"在线屏幕 PPI 计算工具，输入分辨率宽高与对角线尺寸一键求像素密度（PPI=√(w²+h²)/d），纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"屏幕PPI计算","name_zh":"屏幕PPI计算","name_en":"Screen PPI Calculator","schema_url":"/es/tools/ppi/schema.json","schema_url_en":"/en/tools/ppi/schema.json","schema_url_zh":"/tools/ppi/schema.json","slug":"ppi","status":"active","subcategory":"Herramientas de Vida","subcategory_zh":"生活工具","subcategory_en":"Life Tools","ui_url":"/es/tools/ppi/","ui_url_en":"/en/tools/ppi/","ui_url_zh":"/tools/ppi/"},{"api_url":null,"category":"Herramientas de Red","category_zh":"网络工具","createdAt":1780432642000,"description":"Free online IP and subnet mask. Input IP and mask to compute network, broadcast, host range, and total host count. Pure frontend, no upload.","description_zh":"在线 IP/子网掩码计算工具，输入 IP 与掩码一键算网络号/广播号/可用主机范围/总主机数，纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"IP子网掩码计算","name_zh":"IP子网掩码计算","name_en":"IP Subnet Mask Calculator","schema_url":"/es/tools/net/schema.json","schema_url_en":"/en/tools/net/schema.json","schema_url_zh":"/tools/net/schema.json","slug":"net","status":"active","subcategory":"Dominio/IP","subcategory_zh":"域名/IP","subcategory_en":"Domain / IP","ui_url":"/es/tools/net/","ui_url_en":"/en/tools/net/","ui_url_zh":"/tools/net/"},{"api_url":null,"category":"Herramientas de Red","category_zh":"网络工具","createdAt":1780433242000,"description":"Free online IPv6 address compressor/expander. Convert between full 8-group hex and compressed (::) format. Pure frontend processing, no upload.","description_zh":"在线 IPv6 地址压缩/展开工具，支持完整 8 组十六进制 ↔ 压缩格式 (::) 互转，纯前端处理数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"IPv6地址计算","name_zh":"IPv6地址计算","name_en":"Calc Ip6","schema_url":"/es/tools/calc_ip6/schema.json","schema_url_en":"/en/tools/calc_ip6/schema.json","schema_url_zh":"/tools/calc_ip6/schema.json","slug":"calc_ip6","status":"active","subcategory":"Dominio/IP","subcategory_zh":"域名/IP","subcategory_en":"Domain / IP","ui_url":"/es/tools/calc_ip6/","ui_url_en":"/en/tools/calc_ip6/","ui_url_zh":"/tools/calc_ip6/"},{"api_url":null,"category":"Herramientas de Red","category_zh":"网络工具","createdAt":1780433842000,"description":"Free online IP address to number converter. Bidirectional IPv4 ↔ integer (32-bit unsigned) conversion. 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Uses 220-age formula, outputs 5 heart rate zones (warm-up, fat-burn, cardio, anaerobic, max) in BPM with tips.","description_zh":"在线有氧运动燃脂心率计算器,基于最大心率公式(220-年龄)分 5 个心率区间(热身/燃脂/有氧/无氧/极限),输入年龄快速给出每个区间的心率 BPM 范围和运动建议。","frontend_only":true,"lang":"es","method":"NONE","name":"有氧燃脂心率计算","name_zh":"有氧燃脂心率计算","name_en":"Youyang Xinlv","schema_url":"/es/tools/youyang_xinlv/schema.json","schema_url_en":"/en/tools/youyang_xinlv/schema.json","schema_url_zh":"/tools/youyang_xinlv/schema.json","slug":"youyang_xinlv","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/youyang_xinlv/","ui_url_en":"/en/tools/youyang_xinlv/","ui_url_zh":"/tools/youyang_xinlv/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Female Body Measurements calculator. Based on height-ratio method, outputs standard bust, waist, and hip in cm with aesthetic range. Pure JS implementation.","description_zh":"在线女性三围标准自测工具,基于身高比例法(胸围 0.51-0.52、腰围 0.34-0.36、臀围 0.54),输入身高快速获得三围标准值(厘米)并给出时尚美学参考范围。","frontend_only":true,"lang":"es","method":"NONE","name":"女性三围标准计算","name_zh":"女性三围标准计算","name_en":"Nvxing Sanwei","schema_url":"/es/tools/nvxing_sanwei/schema.json","schema_url_en":"/en/tools/nvxing_sanwei/schema.json","schema_url_zh":"/tools/nvxing_sanwei/schema.json","slug":"nvxing_sanwei","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/nvxing_sanwei/","ui_url_en":"/en/tools/nvxing_sanwei/","ui_url_zh":"/tools/nvxing_sanwei/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Fetal Weight estimator. Based on Hadlock formula with BPD, AC, FL ultrasound parameters, outputs estimated weight in grams. Pure JS implementation.","description_zh":"在线胎儿体重估算器,基于 B 超参数的双顶径 BPD / 腹围 AC / 股骨长 FL Hadlock 公式,输入三维 B 超数据估算胎儿当前体重(克),适合孕中晚期参考。","frontend_only":true,"lang":"es","method":"NONE","name":"胎儿体重计算","name_zh":"胎儿体重计算","name_en":"Taierti Tizhong","schema_url":"/es/tools/taierti_tizhong/schema.json","schema_url_en":"/en/tools/taierti_tizhong/schema.json","schema_url_zh":"/tools/taierti_tizhong/schema.json","slug":"taierti_tizhong","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/taierti_tizhong/","ui_url_en":"/en/tools/taierti_tizhong/","ui_url_zh":"/tools/taierti_tizhong/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Baby Eye Color predictor. Based on Mendelian inheritance (brown dominant, blue recessive, green intermediate), outputs probability distribution.","description_zh":"在线宝宝眼睛颜色预测工具,基于父母眼色基因组合的孟德尔遗传规律(显性棕色/隐性蓝色/中间绿色),输入父母眼色快速获得孩子可能的眼色组合及概率分布。","frontend_only":true,"lang":"es","method":"NONE","name":"宝宝眼睛颜色预测","name_zh":"宝宝眼睛颜色预测","name_en":"Baobao Yanjing","schema_url":"/es/tools/baobao_yanjing/schema.json","schema_url_en":"/en/tools/baobao_yanjing/schema.json","schema_url_zh":"/tools/baobao_yanjing/schema.json","slug":"baobao_yanjing","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/baobao_yanjing/","ui_url_en":"/en/tools/baobao_yanjing/","ui_url_zh":"/tools/baobao_yanjing/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Due Date. Based on Naegele's rule (LMP + 280 days). Input last menstrual period to get due date, current week, days remaining, and progress bar.","description_zh":"在线预产期计算器,基于末次月经 (LMP) 的 Naegele 公式:月份 +9 (或 -3) + 日期 +7,输入末次月经第一日快速推算预产期、当前孕周、剩余天数、孕程进度条。","frontend_only":true,"lang":"es","method":"NONE","name":"预产期计算","name_zh":"预产期计算","name_en":"Due Date Calculator","schema_url":"/es/tools/yuchanqi/schema.json","schema_url_en":"/en/tools/yuchanqi/schema.json","schema_url_zh":"/tools/yuchanqi/schema.json","slug":"yuchanqi","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/yuchanqi/","ui_url_en":"/en/tools/yuchanqi/","ui_url_zh":"/tools/yuchanqi/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Child Blood Type predictor. Based on ABO inheritance (IA/IB dominant, i recessive), outputs possible blood types and probabilities. Pure JS implementation.","description_zh":"在线孩子血型预测工具,基于 ABO 血型遗传规律(IA/IB 显性,i 隐性),输入父母血型快速推算孩子可能的血型组合及概率,含 A/B/AB/O 四种表型分析。","frontend_only":true,"lang":"es","method":"NONE","name":"孩子血型预测","name_zh":"孩子血型预测","name_en":"Haizi Xuexing","schema_url":"/es/tools/haizi_xuexing/schema.json","schema_url_en":"/en/tools/haizi_xuexing/schema.json","schema_url_zh":"/tools/haizi_xuexing/schema.json","slug":"haizi_xuexing","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/haizi_xuexing/","ui_url_en":"/en/tools/haizi_xuexing/","ui_url_zh":"/tools/haizi_xuexing/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Children Sleep Duration reference. Based on AASM guidelines, 6 age groups (0-3m, 4-11m, 1-2y, 3-5y, 6-13y, 14-17y) with recommended hours and bedtime. Pure JS.","description_zh":"在线儿童睡眠时长推荐表,基于美国睡眠医学会 (AASM) 标准,按 0-3 月/4-11 月/1-2 岁/3-5 岁/6-13 岁/14-17 岁六个年龄段给出每日推荐睡眠时长及就寝时间推算。","frontend_only":true,"lang":"es","method":"NONE","name":"儿童睡眠时间计算","name_zh":"儿童睡眠时间计算","name_en":"Ertong Shumian","schema_url":"/es/tools/ertong_shumian/schema.json","schema_url_en":"/en/tools/ertong_shumian/schema.json","schema_url_zh":"/tools/ertong_shumian/schema.json","slug":"ertong_shumian","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/ertong_shumian/","ui_url_en":"/en/tools/ertong_shumian/","ui_url_zh":"/tools/ertong_shumian/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Sleep Cycle calculator. Based on 90-minute cycles (light, deep, REM), input sleep or wake time to find optimal wake points. Avoid sleep inertia.","description_zh":"在线睡眠周期计算器,基于 90 分钟一个完整睡眠周期(浅睡→深睡→REM),输入入睡时间或起床时间,反推最佳起床点,避免被深睡期打断造成的睡眠惯性。","frontend_only":true,"lang":"es","method":"NONE","name":"睡眠周期计算","name_zh":"睡眠周期计算","name_en":"Shuimian Zhouqi","schema_url":"/es/tools/shuimian_zhouqi/schema.json","schema_url_en":"/en/tools/shuimian_zhouqi/schema.json","schema_url_zh":"/tools/shuimian_zhouqi/schema.json","slug":"shuimian_zhouqi","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/shuimian_zhouqi/","ui_url_en":"/en/tools/shuimian_zhouqi/","ui_url_zh":"/tools/shuimian_zhouqi/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Child Adult Height predictor. Based on CMH formula (mid-parental height +/- 7.5 cm), outputs predicted adult height range. Pure JS implementation.","description_zh":"在线孩子成年身高预测工具,基于 CMH (Cleveland Medical Height) 公式:男 (父+母+13)/2 ± 7.5 cm,女 (父+母-13)/2 ± 7.5 cm,输入父母身高和性别快速获得预测范围。","frontend_only":true,"lang":"es","method":"NONE","name":"孩子身高预测","name_zh":"孩子身高预测","name_en":"Haizi Shengao","schema_url":"/es/tools/haizi_shengao/schema.json","schema_url_en":"/en/tools/haizi_shengao/schema.json","schema_url_zh":"/tools/haizi_shengao/schema.json","slug":"haizi_shengao","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/haizi_shengao/","ui_url_en":"/en/tools/haizi_shengao/","ui_url_zh":"/tools/haizi_shengao/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Vitamin Food Source reference. Covers vitamins A, B1-B12, C, D, E, K with deficiency symptoms and daily recommended intake. Search by name or function.","description_zh":"在线维生素及富含食物查询工具,覆盖维生素 A/B1/B2/B3/B5/B6/B7/B9/B12/C/D/E/K 13 种,支持按名称搜索、按功效过滤、显示每种维生素的缺乏症状和每日推荐摄入量。","frontend_only":true,"lang":"es","method":"NONE","name":"维生素及食物大全","name_zh":"维生素及食物大全","name_en":"Weishengsu Shiwu","schema_url":"/es/tools/weishengsu_shiwu/schema.json","schema_url_en":"/en/tools/weishengsu_shiwu/schema.json","schema_url_zh":"/tools/weishengsu_shiwu/schema.json","slug":"weishengsu_shiwu","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/weishengsu_shiwu/","ui_url_en":"/en/tools/weishengsu_shiwu/","ui_url_zh":"/tools/weishengsu_shiwu/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Blood Alcohol Concentration calculator. Uses Widmark formula. Input gender, weight, drink type, amount, and time to get BAC and metabolism time.","description_zh":"在线血液酒精浓度 BAC 计算器,基于 Widmark 公式:BAC = (饮酒量 × 酒精度 × 0.789) / (体重 × r),输入性别/体重/饮酒种类/量/时间,获得血液酒精浓度和代谢完成时间。","frontend_only":true,"lang":"es","method":"NONE","name":"血液酒精含量计算","name_zh":"血液酒精含量计算","name_en":"Xueye Jiujing","schema_url":"/es/tools/xueye_jiujing/schema.json","schema_url_en":"/en/tools/xueye_jiujing/schema.json","schema_url_zh":"/tools/xueye_jiujing/schema.json","slug":"xueye_jiujing","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/xueye_jiujing/","ui_url_en":"/en/tools/xueye_jiujing/","ui_url_zh":"/tools/xueye_jiujing/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online Exercise Calorie calculator. Uses METs formula (METs x weight kg x hours). 25+ activities (running, swimming, jump rope, yoga, strength). Pure JS implementation.","description_zh":"在线运动卡路里消耗计算器,基于 METs 代谢当量公式:消耗 = METs × 体重 kg × 时间 h,内置 25 种常见运动 (跑步/游泳/跳绳/瑜伽/力量训练等),输入体重和时长快速获得卡路里消耗。","frontend_only":true,"lang":"es","method":"NONE","name":"运动消耗卡路里计算","name_zh":"运动消耗卡路里计算","name_en":"Yundong Kaluli","schema_url":"/es/tools/yundong_kaluli/schema.json","schema_url_en":"/en/tools/yundong_kaluli/schema.json","schema_url_zh":"/tools/yundong_kaluli/schema.json","slug":"yundong_kaluli","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/yundong_kaluli/","ui_url_en":"/en/tools/yundong_kaluli/","ui_url_zh":"/tools/yundong_kaluli/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online JavaScript deobfuscator. Supports AAEncode, JJCode, SOJson Base64+eval, and Function-constructor eval patterns. Pure frontend reverse-engineering.","description_zh":"在线 JavaScript 加密与解密工具,支持 AAEncode 颜文字、JJCode 数学符号、SOJson Base64+eval、eval 包装 Function 构造器四种模式,纯前端反混淆,适合代码审计。","frontend_only":true,"lang":"es","method":"NONE","name":"JS 加密/解密","name_zh":"JS 加密/解密","name_en":"JS Jiemi","schema_url":"/es/tools/js_jiemi/schema.json","schema_url_en":"/en/tools/js_jiemi/schema.json","schema_url_zh":"/tools/js_jiemi/schema.json","slug":"js_jiemi","status":"active","subcategory":"Esteganografía","subcategory_zh":"隐写混淆","subcategory_en":"Steganography","ui_url":"/es/tools/js_jiemi/","ui_url_en":"/en/tools/js_jiemi/","ui_url_zh":"/tools/js_jiemi/"},{"api_url":"","category":"Herramientas de Desarrollo","category_zh":"开发工具","createdAt":"2026-06-04","description":"Free online SQL formatter. Supports SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER with auto-uppercase keywords and 2/4/Tab indent options. Pure JS implementation.","description_zh":"在线 SQL 压缩与格式化工具,支持 SELECT/INSERT/UPDATE/DELETE/CREATE/ALTER 六种语句类型,关键字自动大写,提供 2 空格、4 空格、Tab 三种缩进,纯前端实时转换。","frontend_only":true,"lang":"es","method":"NONE","name":"SQL 格式化","name_zh":"SQL 格式化","name_en":"SQL Format","schema_url":"/es/tools/sql_format/schema.json","schema_url_en":"/en/tools/sql_format/schema.json","schema_url_zh":"/tools/sql_format/schema.json","slug":"sql_format","status":"active","subcategory":"Formateo de Código","subcategory_zh":"代码格式化","subcategory_en":"Code Formatter","ui_url":"/es/tools/sql_format/","ui_url_en":"/en/tools/sql_format/","ui_url_zh":"/tools/sql_format/"},{"api_url":"","category":"Herramientas de Desarrollo","category_zh":"开发工具","createdAt":"2026-06-04","description":"Free online PHP formatter. Custom tokenizer recognizes T_OPEN_TAG, T_VARIABLE, T_STRING, T_LNUMBER. PSR-12 4-space indent, lowercase keywords. 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Ideal for number theory study.","description_zh":"在线质数判断和质数表生成工具,支持单数质数判定和指定范围内质数枚举,采用埃氏筛法高效计算,适合数论学习参考。","frontend_only":true,"lang":"es","method":"NONE","name":"质数判断","name_zh":"质数判断","name_en":"Prime Checker","schema_url":"/es/tools/prime/schema.json","schema_url_en":"/en/tools/prime/schema.json","schema_url_zh":"/tools/prime/schema.json","slug":"prime","status":"active","subcategory":"Cálculo Matemático","subcategory_zh":"数学计算","subcategory_en":"Math","ui_url":"/es/tools/prime/","ui_url_en":"/en/tools/prime/","ui_url_zh":"/tools/prime/"},{"api_url":"","category":"Calculadoras","category_zh":"计算工具","createdAt":"2026-06-04","description":"Free online Math Expression calculator. 50+ functions (add, subtract, multiply, divide, power, root, trig, log) with variable assignment and complex numbers. Pure JS.","description_zh":"在线数学表达式计算工具,支持加减乘除乘方开方三角函数对数等 50+ 数学函数,支持变量赋值和复数运算,纯浏览器本地计算。","frontend_only":true,"lang":"es","method":"NONE","name":"数学表达式","name_zh":"数学表达式","name_en":"Math Eval","schema_url":"/es/tools/math_eval/schema.json","schema_url_en":"/en/tools/math_eval/schema.json","schema_url_zh":"/tools/math_eval/schema.json","slug":"math_eval","status":"active","subcategory":"Cálculo Matemático","subcategory_zh":"数学计算","subcategory_en":"Math","ui_url":"/es/tools/math_eval/","ui_url_en":"/en/tools/math_eval/","ui_url_zh":"/tools/math_eval/"},{"api_url":"","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":"2026-06-04","description":"Free online Chinese ID Card validator. Strict GB 11643-1999 check for 18-digit ID. Validates birthday, region, and checksum. Pure local computation for privacy.","description_zh":"在线身份证号码校验工具,严格按照 GB 11643-1999 国标校验 18 位身份证号,验证生日/地区/校验码三位一体合法性,纯本地计算保护隐私。","frontend_only":true,"lang":"es","method":"NONE","name":"身份证校验","name_zh":"身份证校验","name_en":"Idcard Check","schema_url":"/es/tools/idcard_check/schema.json","schema_url_en":"/en/tools/idcard_check/schema.json","schema_url_zh":"/tools/idcard_check/schema.json","slug":"idcard_check","status":"active","subcategory":"Ubicación Geográfica","subcategory_zh":"地理位置","subcategory_en":"Location","ui_url":"/es/tools/idcard_check/","ui_url_en":"/en/tools/idcard_check/","ui_url_zh":"/tools/idcard_check/"},{"api_url":"","category":"Herramientas de Red","category_zh":"网络工具","createdAt":"2026-06-04","description":"Free online IPv6 address converter. Full, compressed, and binary format conversion with IPv4-mapped support. Pure browser-side, ideal for network debugging.","description_zh":"在线 IPv6 地址转换工具,支持完整格式/压缩格式/二进制多种表示互转,提供 IPv4 映射地址解析,纯浏览器本地计算适合网络调试。","frontend_only":true,"lang":"es","method":"NONE","name":"IPv6 转换","name_zh":"IPv6 转换","name_en":"IPv6 Convert","schema_url":"/es/tools/ipv6_convert/schema.json","schema_url_en":"/en/tools/ipv6_convert/schema.json","schema_url_zh":"/tools/ipv6_convert/schema.json","slug":"ipv6_convert","status":"active","subcategory":"Dominio/IP","subcategory_zh":"域名/IP","subcategory_en":"Domain / IP","ui_url":"/es/tools/ipv6_convert/","ui_url_en":"/en/tools/ipv6_convert/","ui_url_zh":"/tools/ipv6_convert/"},{"api_url":"","category":"Calculadoras","category_zh":"计算工具","createdAt":"2026-06-04","description":"Free online Scientific calculator. Supports60+ advanced functions (trig, log, exp, factorial, permutation), degree/radian toggle, calculation history, pure browser-side.","description_zh":"在线科学计算器,支持三角函数/对数/指数/阶乘/排列组合等 60+ 高级数学函数,支持角度弧度切换和历史记录,纯浏览器本地计算。","frontend_only":true,"lang":"es","method":"NONE","name":"科学计算器","name_zh":"科学计算器","name_en":"Scientific Calc","schema_url":"/es/tools/scientific_calc/schema.json","schema_url_en":"/en/tools/scientific_calc/schema.json","schema_url_zh":"/tools/scientific_calc/schema.json","slug":"scientific_calc","status":"active","subcategory":"Cálculo Matemático","subcategory_zh":"数学计算","subcategory_en":"Math","ui_url":"/es/tools/scientific_calc/","ui_url_en":"/en/tools/scientific_calc/","ui_url_zh":"/tools/scientific_calc/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online RSA key pair generator. Supports1024/2048/4096-bit key lengths via Web Crypto API, browser-local generation, ideal for dev testing and key learning.","description_zh":"在线 RSA 密钥对生成工具,支持 1024/2048/4096 位密钥长度,基于 Web Crypto API 浏览器本地生成,适合开发测试和密钥学习场景。","frontend_only":true,"lang":"es","method":"NONE","name":"RSA 密钥生成","name_zh":"RSA 密钥生成","name_en":"RSA Keygen","schema_url":"/es/tools/rsa_keygen/schema.json","schema_url_en":"/en/tools/rsa_keygen/schema.json","schema_url_zh":"/tools/rsa_keygen/schema.json","slug":"rsa_keygen","status":"active","subcategory":"Cifrado Asimétrico","subcategory_zh":"非对称加密","subcategory_en":"Asymmetric Cipher","ui_url":"/es/tools/rsa_keygen/","ui_url_en":"/en/tools/rsa_keygen/","ui_url_zh":"/tools/rsa_keygen/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Bcrypt password hash generator. Based on jsBcrypt library, supports custom cost factor (4-12), output ready for password storage and verification.","description_zh":"在线 bcrypt 密码哈希生成工具,基于 jsBcrypt 库实现,支持自定义 cost 因子(4-12),生成的哈希可直接用于密码存储验证场景。","frontend_only":true,"lang":"es","method":"NONE","name":"bcrypt 哈希","name_zh":"bcrypt 哈希","name_en":"Bcrypt Hash","schema_url":"/es/tools/bcrypt_hash/schema.json","schema_url_en":"/en/tools/bcrypt_hash/schema.json","schema_url_zh":"/tools/bcrypt_hash/schema.json","slug":"bcrypt_hash","status":"active","subcategory":"Hash","subcategory_zh":"哈希","subcategory_en":"Hash","ui_url":"/es/tools/bcrypt_hash/","ui_url_en":"/en/tools/bcrypt_hash/","ui_url_zh":"/tools/bcrypt_hash/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Keccak SHA-3 hash calculator. Supports SHA3-224/256/384/512 output lengths via jsSha3 library, pure browser-side, ideal for blockchain and crypto research.","description_zh":"在线 Keccak SHA-3 哈希计算工具,支持 SHA3-224/256/384/512 四种输出长度,基于 jsSha3 库,纯浏览器端计算适合区块链和密码学研究场景。","frontend_only":true,"lang":"es","method":"NONE","name":"Keccak SHA3 哈希","name_zh":"Keccak SHA3 哈希","name_en":"Keccak SHA-3","schema_url":"/es/tools/keccak_sha3/schema.json","schema_url_en":"/en/tools/keccak_sha3/schema.json","schema_url_zh":"/tools/keccak_sha3/schema.json","slug":"keccak_sha3","status":"active","subcategory":"Hash","subcategory_zh":"哈希","subcategory_en":"Hash","ui_url":"/es/tools/keccak_sha3/","ui_url_en":"/en/tools/keccak_sha3/","ui_url_zh":"/tools/keccak_sha3/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online RIPEMD-160 hash calculator.160-bit fixed-length output (40 hex chars), RACE integrity primitive standard, ideal for Bitcoin address generation.","description_zh":"在线 RIPEMD-160 哈希计算工具,160 位定长输出(40 字符十六进制),欧洲 RACE 完整性基元评估项目标准,适合比特币地址生成等密码学场景。","frontend_only":true,"lang":"es","method":"NONE","name":"RIPEMD-160 哈希","name_zh":"RIPEMD-160 哈希","name_en":"Ripemd Hash","schema_url":"/es/tools/ripemd_hash/schema.json","schema_url_en":"/en/tools/ripemd_hash/schema.json","schema_url_zh":"/tools/ripemd_hash/schema.json","slug":"ripemd_hash","status":"active","subcategory":"Hash","subcategory_zh":"哈希","subcategory_en":"Hash","ui_url":"/es/tools/ripemd_hash/","ui_url_en":"/en/tools/ripemd_hash/","ui_url_zh":"/tools/ripemd_hash/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online BLAKE2 hash calculator. Supports BLAKE2b and BLAKE2s variants,2x+ faster than SHA-256, ideal for high-performance checksum and crypto applications.","description_zh":"在线 BLAKE2 哈希计算工具,支持 BLAKE2b(BLAKE2s) 两种变体,速度比 SHA-256 快一倍以上,适合高性能校验和密码学应用场景。","frontend_only":true,"lang":"es","method":"NONE","name":"BLAKE2 哈希","name_zh":"BLAKE2 哈希","name_en":"Blake2 Hash","schema_url":"/es/tools/blake2_hash/schema.json","schema_url_en":"/en/tools/blake2_hash/schema.json","schema_url_zh":"/tools/blake2_hash/schema.json","slug":"blake2_hash","status":"active","subcategory":"Hash","subcategory_zh":"哈希","subcategory_en":"Hash","ui_url":"/es/tools/blake2_hash/","ui_url_en":"/en/tools/blake2_hash/","ui_url_zh":"/tools/blake2_hash/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Morse code encrypt/decrypt tool. Bidirectional conversion for letters, digits and common punctuation, audio playback and rhythm visualization, ideal for radio and crypto beginners.","description_zh":"在线摩斯密码编解码工具,支持英文字母/数字/常用标点双向转换,提供音频播放和节奏可视化,适合无线电爱好者和密码学入门学习场景。","frontend_only":true,"lang":"es","method":"NONE","name":"摩斯密码","name_zh":"摩斯密码","name_en":"Morse Code","schema_url":"/es/tools/morse_code/schema.json","schema_url_en":"/en/tools/morse_code/schema.json","schema_url_zh":"/tools/morse_code/schema.json","slug":"morse_code","status":"active","subcategory":"Criptografía Clásica","subcategory_zh":"古典密码","subcategory_en":"Classical Cipher","ui_url":"/es/tools/morse_code/","ui_url_en":"/en/tools/morse_code/","ui_url_zh":"/tools/morse_code/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Caesar cipher encrypt/decrypt tool. Letter-shift classical cipher with custom offset (1-25), encrypt/decrypt English letters, ideal for crypto learning and history research.","description_zh":"在线凯撒密码编解码工具,通过字母位移实现古典加密,支持自定义偏移量(1-25),可加密解密英文字母,适合密码学入门和历史加密研究场景。","frontend_only":true,"lang":"es","method":"NONE","name":"凯撒密码","name_zh":"凯撒密码","name_en":"Caesar Cipher","schema_url":"/es/tools/caesar_cipher/schema.json","schema_url_en":"/en/tools/caesar_cipher/schema.json","schema_url_zh":"/tools/caesar_cipher/schema.json","slug":"caesar_cipher","status":"active","subcategory":"Criptografía Clásica","subcategory_zh":"古典密码","subcategory_en":"Classical Cipher","ui_url":"/es/tools/caesar_cipher/","ui_url_en":"/en/tools/caesar_cipher/","ui_url_zh":"/tools/caesar_cipher/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Vigenère cipher encrypt/decrypt tool. Polyalphabetic classical cipher, stronger than Caesar, supports custom key, ideal for crypto teaching and CTF practice.","description_zh":"在线维吉尼亚密码编解码工具,使用多表替换实现古典加密,比凯撒密码更安全,支持自定义密钥,适合密码学教学和 CTF 解密练习场景。","frontend_only":true,"lang":"es","method":"NONE","name":"维吉尼亚密码","name_zh":"维吉尼亚密码","name_en":"Vigenère Cipher","schema_url":"/es/tools/vigenere/schema.json","schema_url_en":"/en/tools/vigenere/schema.json","schema_url_zh":"/tools/vigenere/schema.json","slug":"vigenere","status":"active","subcategory":"Criptografía Clásica","subcategory_zh":"古典密码","subcategory_en":"Classical Cipher","ui_url":"/es/tools/vigenere/","ui_url_en":"/en/tools/vigenere/","ui_url_zh":"/tools/vigenere/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online ROT13 letter substitution cipher. Each letter A-Z shifts by13, encrypt equals decrypt, ideal for text obfuscation and forum spoiler hiding.","description_zh":"在线 ROT13 字母替换编码工具,英文字母 A-Z 各自位移 13 位,加解密算法相同,适合文本混淆和在线论坛隐藏剧透内容场景。","frontend_only":true,"lang":"es","method":"NONE","name":"ROT13 编码","name_zh":"ROT13 编码","name_en":"Rot13","schema_url":"/es/tools/rot13/schema.json","schema_url_en":"/en/tools/rot13/schema.json","schema_url_zh":"/tools/rot13/schema.json","slug":"rot13","status":"active","subcategory":"Criptografía Clásica","subcategory_zh":"古典密码","subcategory_en":"Classical Cipher","ui_url":"/es/tools/rot13/","ui_url_en":"/en/tools/rot13/","ui_url_zh":"/tools/rot13/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":"2026-06-04","description":"Free online Atbash cipher encrypt/decrypt tool. Reverse Hebrew alphabet substitution, A↔Z B↔Y, encrypt equals decrypt, ideal for crypto learning and Hebrew culture.","description_zh":"在线 Atbash 密码编解码工具,希伯来字母表反向替换加密,A↔Z B↔Y 加解密算法相同,适合密码学入门和希伯来文化研究场景。","frontend_only":true,"lang":"es","method":"NONE","name":"Atbash 密码","name_zh":"Atbash 密码","name_en":"Atbash Cipher","schema_url":"/es/tools/atbash/schema.json","schema_url_en":"/en/tools/atbash/schema.json","schema_url_zh":"/tools/atbash/schema.json","slug":"atbash","status":"active","subcategory":"Criptografía Clásica","subcategory_zh":"古典密码","subcategory_en":"Classical Cipher","ui_url":"/es/tools/atbash/","ui_url_en":"/en/tools/atbash/","ui_url_zh":"/tools/atbash/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online Char Counter. Real-time count of characters, words, lines and paragraphs, supports mixed Chinese-English text, ideal for Weibo/Xiaohongshu/academic writing.","description_zh":"在线字符统计工具,实时统计字符数/单词数/行数/段落数,支持中英文混合文本,适合字数限制场景如微博/小红书/论文写作参考。","frontend_only":true,"lang":"es","method":"NONE","name":"字符统计","name_zh":"字符统计","name_en":"Char Counter","schema_url":"/es/tools/char_counter/schema.json","schema_url_en":"/en/tools/char_counter/schema.json","schema_url_zh":"/tools/char_counter/schema.json","slug":"char_counter","status":"active","subcategory":"Conteo de Caracteres","subcategory_zh":"字数统计","subcategory_en":"Word Count","ui_url":"/es/tools/char_counter/","ui_url_en":"/en/tools/char_counter/","ui_url_zh":"/tools/char_counter/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online character frequency analyzer. Counts occurrences and ratio of each char, sorted by frequency descending, ideal for crypto frequency analysis and text profiling.","description_zh":"在线字符频次分析工具,统计文本中每个字符出现次数和频率,按频率降序排列,适合密码学频率分析和文本特征提取场景。","frontend_only":true,"lang":"es","method":"NONE","name":"字符频次分析","name_zh":"字符频次分析","name_en":"Char Frequency","schema_url":"/es/tools/char_frequency/schema.json","schema_url_en":"/en/tools/char_frequency/schema.json","schema_url_zh":"/tools/char_frequency/schema.json","slug":"char_frequency","status":"active","subcategory":"Conteo de Caracteres","subcategory_zh":"字数统计","subcategory_en":"Word Count","ui_url":"/es/tools/char_frequency/","ui_url_en":"/en/tools/char_frequency/","ui_url_zh":"/tools/char_frequency/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online character encoding detector. Auto-identifies UTF-8/GBK/Big5/UTF-16 and more, byte-level hex view, ideal for mojibake analysis and file encoding checks.","description_zh":"在线字符编码检测工具,自动识别文本可能的字符编码(UTF-8/GBK/Big5/UTF-16),提供字节级 hex 视图,适合乱码分析和文件编码判断场景。","frontend_only":true,"lang":"es","method":"NONE","name":"字符编码检测","name_zh":"字符编码检测","name_en":"Char Encoding","schema_url":"/es/tools/char_encoding/schema.json","schema_url_en":"/en/tools/char_encoding/schema.json","schema_url_zh":"/tools/char_encoding/schema.json","slug":"char_encoding","status":"active","subcategory":"Conteo de Caracteres","subcategory_zh":"字数统计","subcategory_en":"Word Count","ui_url":"/es/tools/char_encoding/","ui_url_en":"/en/tools/char_encoding/","ui_url_zh":"/tools/char_encoding/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online Chinese to Pinyin converter. Supports with-tone and no-tone modes, auto-disambiguates polyphonic characters with candidates, ideal for study and input method dev.","description_zh":"在线汉字转拼音工具,支持带声调和不带声调两种模式,自动处理多音字并显示候选读音,适合中文学习、姓名拼音标注和输入法开发场景。","frontend_only":true,"lang":"es","method":"NONE","name":"汉字转拼音","name_zh":"汉字转拼音","name_en":"Cn To Pinyin","schema_url":"/es/tools/cn_to_pinyin/schema.json","schema_url_en":"/en/tools/cn_to_pinyin/schema.json","schema_url_zh":"/tools/cn_to_pinyin/schema.json","slug":"cn_to_pinyin","status":"active","subcategory":"Procesamiento de Chino","subcategory_zh":"中文处理","subcategory_en":"Chinese Text","ui_url":"/es/tools/cn_to_pinyin/","ui_url_en":"/en/tools/cn_to_pinyin/","ui_url_zh":"/tools/cn_to_pinyin/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online Traditional-Simplified Chinese converter. Bidirectional conversion based on common-character table, ideal for HK/TW documents and traditional character study.","description_zh":"在线繁体简体字转换工具,支持双向转换(繁→简 / 简→繁),基于常用字对照表,适合港台地区文档处理和繁体字学习场景。","frontend_only":true,"lang":"es","method":"NONE","name":"繁简转换","name_zh":"繁简转换","name_en":"Trad Simp","schema_url":"/es/tools/trad_simp/schema.json","schema_url_en":"/en/tools/trad_simp/schema.json","schema_url_zh":"/tools/trad_simp/schema.json","slug":"trad_simp","status":"active","subcategory":"Procesamiento de Chino","subcategory_zh":"中文处理","subcategory_en":"Chinese Text","ui_url":"/es/tools/trad_simp/","ui_url_en":"/en/tools/trad_simp/","ui_url_zh":"/tools/trad_simp/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online number to Chinese converter. Supports Arabic to Chinese numerals and financial uppercase form, ideal for invoice and receipt entry.","description_zh":"在线数字转中文大写金额工具,支持阿拉伯数字转中文数字(一二三四)和财务大写(壹贰叁肆),适合金额录入和票据处理场景。","frontend_only":true,"lang":"es","method":"NONE","name":"数字转中文","name_zh":"数字转中文","name_en":"Num To Cn","schema_url":"/es/tools/num_to_cn/schema.json","schema_url_en":"/en/tools/num_to_cn/schema.json","schema_url_zh":"/tools/num_to_cn/schema.json","slug":"num_to_cn","status":"active","subcategory":"Procesamiento de Chino","subcategory_zh":"中文处理","subcategory_en":"Chinese Text","ui_url":"/es/tools/num_to_cn/","ui_url_en":"/en/tools/num_to_cn/","ui_url_zh":"/tools/num_to_cn/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online Chinese-English spacing tool. Auto-adjusts spacing between CJK and Latin text per Chinese typography rules, ideal for editing and publishing workflows.","description_zh":"在线中英混排对齐工具,自动调整中英文之间的空格(中英文之间加空格,英文与中文标点之间去空格),符合中文排版规范,适合编辑出版场景。","frontend_only":true,"lang":"es","method":"NONE","name":"中英混排对齐","name_zh":"中英混排对齐","name_en":"Cn En Align","schema_url":"/es/tools/cn_en_align/schema.json","schema_url_en":"/en/tools/cn_en_align/schema.json","schema_url_zh":"/tools/cn_en_align/schema.json","slug":"cn_en_align","status":"active","subcategory":"Tipografía","subcategory_zh":"排版","subcategory_en":"Typography","ui_url":"/es/tools/cn_en_align/","ui_url_en":"/en/tools/cn_en_align/","ui_url_zh":"/tools/cn_en_align/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":"2026-06-04","description":"Free online Chinese stroke-count sorter. Auto-counts strokes for each character, supports ascending and descending sort, ideal for name lists and character study.","description_zh":"在线中文字符按笔画数排序工具,自动统计每个汉字的笔画数,支持按笔画数升序/降序排列,适合姓名排序和汉字学习场景。","frontend_only":true,"lang":"es","method":"NONE","name":"中文笔画排序","name_zh":"中文笔画排序","name_en":"Cn Stroke Sort","schema_url":"/es/tools/cn_stroke_sort/schema.json","schema_url_en":"/en/tools/cn_stroke_sort/schema.json","schema_url_zh":"/tools/cn_stroke_sort/schema.json","slug":"cn_stroke_sort","status":"active","subcategory":"Procesamiento de Chino","subcategory_zh":"中文处理","subcategory_en":"Chinese Text","ui_url":"/es/tools/cn_stroke_sort/","ui_url_en":"/en/tools/cn_stroke_sort/","ui_url_zh":"/tools/cn_stroke_sort/"},{"api_url":"","category":"Conversión de Datos","category_zh":"数据转换","createdAt":"2026-06-04","description":"Free online garbled text recovery tool. Tries multiple encoding combinations (UTF-8-as-GBK, GBK-as-UTF-8, BIG5-as-GB, etc.) for one-click mojibake repair, ideal for file imports.","description_zh":"在线乱码恢复工具,自动尝试多种编码组合解码乱码文本,常见 UTF-8 误读 GBK、GBK 误读 UTF-8、BIG5 误读 GB 等场景一键还原,适合文件导入场景。","frontend_only":true,"lang":"es","method":"NONE","name":"乱码恢复","name_zh":"乱码恢复","name_en":"Garbled Recover","schema_url":"/es/tools/garbled_recover/schema.json","schema_url_en":"/en/tools/garbled_recover/schema.json","schema_url_zh":"/tools/garbled_recover/schema.json","slug":"garbled_recover","status":"active","subcategory":"Procesamiento de Cadenas","subcategory_zh":"字符串处理","subcategory_en":"String Processing","ui_url":"/es/tools/garbled_recover/","ui_url_en":"/en/tools/garbled_recover/","ui_url_zh":"/tools/garbled_recover/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online ideal weight calculator. Offers4 formulas (Broca, Lorentz, BMI reverse, WHO) for ideal weight estimation, ideal for fitness and weight management reference.","description_zh":"在线标准体重计算器,提供 4 种公式(Broca 指数/Lorentz 指数/BMI 反推/世卫组织)估算理想体重,适合健身和体重管理参考。","frontend_only":true,"lang":"es","method":"NONE","name":"标准体重","name_zh":"标准体重","name_en":"Ideal Weight","schema_url":"/es/tools/ideal_weight/schema.json","schema_url_en":"/en/tools/ideal_weight/schema.json","schema_url_zh":"/tools/ideal_weight/schema.json","slug":"ideal_weight","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/ideal_weight/","ui_url_en":"/en/tools/ideal_weight/","ui_url_zh":"/tools/ideal_weight/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online body fat calculator. Uses US Navy BMI method to estimate body fat %, inputs height, weight, age, sex, waist and neck, ideal for fitness reference.","description_zh":"在线体脂率计算器,基于美国海军 BMI 法估算身体脂肪率,需要身高/体重/年龄/性别/腰围/颈围,适合健身和减脂参考场景。","frontend_only":true,"lang":"es","method":"NONE","name":"体脂率","name_zh":"体脂率","name_en":"Body Fat","schema_url":"/es/tools/body_fat/schema.json","schema_url_en":"/en/tools/body_fat/schema.json","schema_url_zh":"/tools/body_fat/schema.json","slug":"body_fat","status":"active","subcategory":"Indicadores de Complexión","subcategory_zh":"体型指标","subcategory_en":"Body Metrics","ui_url":"/es/tools/body_fat/","ui_url_en":"/en/tools/body_fat/","ui_url_zh":"/tools/body_fat/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online calorie calculator. Uses Mifflin-St Jeor formula for BMR and TDEE with5 activity levels, ideal for fat-loss and muscle-gain planning reference.","description_zh":"在线卡路里需求计算器,基于 Mifflin-St Jeor 公式计算 BMR 基础代谢率和 TDEE 每日总消耗,支持 5 种活动水平,适合减脂和增肌参考。","frontend_only":true,"lang":"es","method":"NONE","name":"卡路里","name_zh":"卡路里","name_en":"Calorie Calc","schema_url":"/es/tools/calorie_calc/schema.json","schema_url_en":"/en/tools/calorie_calc/schema.json","schema_url_zh":"/tools/calorie_calc/schema.json","slug":"calorie_calc","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/calorie_calc/","ui_url_en":"/en/tools/calorie_calc/","ui_url_zh":"/tools/calorie_calc/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online daily water intake recommender. Calculates suggested intake from weight, activity and climate per medical guidelines, ideal for fitness and daily health.","description_zh":"在线每日饮水量推荐工具,基于体重、活动强度和气候计算建议饮水量,符合医学推荐标准,适合运动健身和日常健康管理场景。","frontend_only":true,"lang":"es","method":"NONE","name":"每日水分","name_zh":"每日水分","name_en":"Water Intake","schema_url":"/es/tools/water_intake/schema.json","schema_url_en":"/en/tools/water_intake/schema.json","schema_url_zh":"/tools/water_intake/schema.json","slug":"water_intake","status":"active","subcategory":"Nutrición/Sueño","subcategory_zh":"营养睡眠","subcategory_en":"Nutrition & Sleep","ui_url":"/es/tools/water_intake/","ui_url_en":"/en/tools/water_intake/","ui_url_zh":"/tools/water_intake/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online pregnancy week and due date calculator. Computes current week, due date and trimester from last menstrual period, ideal for expectant mothers' tracking.","description_zh":"在线孕期周数和预产期计算工具,基于末次月经日期计算当前孕周、预产期、孕期阶段,适合准妈妈孕期管理参考场景。","frontend_only":true,"lang":"es","method":"NONE","name":"孕期计算","name_zh":"孕期计算","name_en":"Pregnancy Calc","schema_url":"/es/tools/pregnancy_calc/schema.json","schema_url_en":"/en/tools/pregnancy_calc/schema.json","schema_url_zh":"/tools/pregnancy_calc/schema.json","slug":"pregnancy_calc","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/pregnancy_calc/","ui_url_en":"/en/tools/pregnancy_calc/","ui_url_zh":"/tools/pregnancy_calc/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online due date calculator. Applies Naegele's rule (month +9/-3, day +7) to last menstrual period, ideal for conception planning and pregnancy management.","description_zh":"在线预产期计算工具,基于末次月经日期按 Naegele 法则(月份+9/-3,日期+7)计算预产期,适合备孕和孕期管理场景。","frontend_only":true,"lang":"es","method":"NONE","name":"预产期","name_zh":"预产期","name_en":"Due Date","schema_url":"/es/tools/due_date/schema.json","schema_url_en":"/en/tools/due_date/schema.json","schema_url_zh":"/tools/due_date/schema.json","slug":"due_date","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/due_date/","ui_url_en":"/en/tools/due_date/","ui_url_zh":"/tools/due_date/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online ovulation. Predicts ovulation day, fertile window and safe days from cycle length, with6-month calendar view for conception planning.","description_zh":"在线排卵期计算工具,基于月经周期推算排卵日、易孕期、安全期,适合备孕和避孕参考,提供 6 个月周期日历视图。","frontend_only":true,"lang":"es","method":"NONE","name":"排卵期","name_zh":"排卵期","name_en":"Ovulation Calculator","schema_url":"/es/tools/ovulation/schema.json","schema_url_en":"/en/tools/ovulation/schema.json","schema_url_zh":"/tools/ovulation/schema.json","slug":"ovulation","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/ovulation/","ui_url_en":"/en/tools/ovulation/","ui_url_zh":"/tools/ovulation/"},{"api_url":"","category":"Salud y Fitness","category_zh":"健康测算","createdAt":"2026-06-04","description":"Free online safe-period calculator. Estimates menstrual, ovulation and safe days from cycle length, for natural planning reference only - consult a doctor for advice.","description_zh":"在线安全期计算工具,基于月经周期推算月经期/排卵期/安全期,适合自然避孕和备孕参考,提示仅供参考具体请咨询医生。","frontend_only":true,"lang":"es","method":"NONE","name":"安全期","name_zh":"安全期","name_en":"Safe Period","schema_url":"/es/tools/safe_period/schema.json","schema_url_en":"/en/tools/safe_period/schema.json","schema_url_zh":"/tools/safe_period/schema.json","slug":"safe_period","status":"active","subcategory":"Cálculo de Embarazo/Bebé","subcategory_zh":"孕婴计算","subcategory_en":"Pregnancy & Baby","ui_url":"/es/tools/safe_period/","ui_url_en":"/en/tools/safe_period/","ui_url_zh":"/tools/safe_period/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online Chinese zodiac and Western zodiac lookup. Enter birthday to auto-detect animal sign, five elements and Western sign with date range, ideal for profile filling.","description_zh":"在线生肖星座速查工具,输入生日自动判断属相、生肖五行、西方星座、星座日期范围,适合个人资料填写和生日查询场景。","frontend_only":true,"lang":"es","method":"NONE","name":"生肖星座速查","name_zh":"生肖星座速查","name_en":"Shengxiao Xingzuo","schema_url":"/es/tools/shengxiao_xingzuo/schema.json","schema_url_en":"/en/tools/shengxiao_xingzuo/schema.json","schema_url_zh":"/tools/shengxiao_xingzuo/schema.json","slug":"shengxiao_xingzuo","status":"active","subcategory":"Adivinación Occidental","subcategory_zh":"西方占卜","subcategory_en":"Western Divination","ui_url":"/es/tools/shengxiao_xingzuo/","ui_url_en":"/en/tools/shengxiao_xingzuo/","ui_url_zh":"/tools/shengxiao_xingzuo/"},{"api_url":"","category":"Hora y Fecha","category_zh":"时间日期","createdAt":"2026-06-04","description":"Free online Twelve Shichen lookup. Ancient Chinese12 time periods (Zi, Chou, Yin, Mao...) dividing day into2-hour slots, ideal for traditional culture and TCM study.","description_zh":"在线十二时辰查询工具,中国古代将一昼夜分为十二时辰(子丑寅卯辰巳午未申酉戌亥),每时辰 2 小时,适合传统文化学习和中医养生参考。","frontend_only":true,"lang":"es","method":"NONE","name":"十二时辰","name_zh":"十二时辰","name_en":"Shier Shichen","schema_url":"/es/tools/shier_shichen/schema.json","schema_url_en":"/en/tools/shier_shichen/schema.json","schema_url_zh":"/tools/shier_shichen/schema.json","slug":"shier_shichen","status":"active","subcategory":"Calendario","subcategory_zh":"历法","subcategory_en":"Calendar","ui_url":"/es/tools/shier_shichen/","ui_url_en":"/en/tools/shier_shichen/","ui_url_zh":"/tools/shier_shichen/"},{"api_url":"","category":"Hora y Fecha","category_zh":"时间日期","createdAt":"2026-06-04","description":"Free online24 Solar Terms lookup. Shows all24 terms (Lichun, Yushui, Jingzhe, Chunfen...) with dates and descriptions by year, ideal for traditional culture and farming.","description_zh":"在线二十四节气查询工具,展示立春/雨水/惊蛰/春分等全年 24 个节气日期,支持按年份查询和节气介绍,适合传统文化和农耕参考。","frontend_only":true,"lang":"es","method":"NONE","name":"二十四节气","name_zh":"二十四节气","name_en":"Ershisi Jieqi","schema_url":"/es/tools/ershisi_jieqi/schema.json","schema_url_en":"/en/tools/ershisi_jieqi/schema.json","schema_url_zh":"/tools/ershisi_jieqi/schema.json","slug":"ershisi_jieqi","status":"active","subcategory":"Calendario","subcategory_zh":"历法","subcategory_en":"Calendar","ui_url":"/es/tools/ershisi_jieqi/","ui_url_en":"/en/tools/ershisi_jieqi/","ui_url_zh":"/tools/ershisi_jieqi/"},{"api_url":"","category":"Hora y Fecha","category_zh":"时间日期","createdAt":"2026-06-04","description":"Free online Heavenly Stems and Earthly Branches lookup. Shows10 stems (Jia, Yi, Bing...) and12 branches (Zi, Chou, Yin...) with Gregorian year to Gan-Zhi conversion.","description_zh":"在线天干地支查询工具,展示十天干(甲乙丙丁戊己庚辛壬癸)和十二地支(子丑寅卯辰巳午未申酉戌亥)组合,支持公历年转换干支年份。","frontend_only":true,"lang":"es","method":"NONE","name":"天干地支","name_zh":"天干地支","name_en":"Tiangan Dizhi","schema_url":"/es/tools/tiangan_dizhi/schema.json","schema_url_en":"/en/tools/tiangan_dizhi/schema.json","schema_url_zh":"/tools/tiangan_dizhi/schema.json","slug":"tiangan_dizhi","status":"active","subcategory":"Calendario","subcategory_zh":"历法","subcategory_en":"Calendar","ui_url":"/es/tools/tiangan_dizhi/","ui_url_en":"/en/tools/tiangan_dizhi/","ui_url_zh":"/tools/tiangan_dizhi/"},{"api_url":"","category":"Hora y Fecha","category_zh":"时间日期","createdAt":"2026-06-04","description":"Free online Lunar-Solar calendar converter. Gregorian to lunar (year/month/day/Gan-Zhi/zodiac) and lunar to Gregorian (1900-2100), ideal for festivals and BaZi reference.","description_zh":"在线农历公历日期互转工具,支持公历转农历(年/月/日/干支/生肖)和农历转公历(1900-2100),适合传统节日查询和生辰八字参考场景。","frontend_only":true,"lang":"es","method":"NONE","name":"农历公历互转","name_zh":"农历公历互转","name_en":"Lunar Solar","schema_url":"/es/tools/lunar_solar/schema.json","schema_url_en":"/en/tools/lunar_solar/schema.json","schema_url_zh":"/tools/lunar_solar/schema.json","slug":"lunar_solar","status":"active","subcategory":"Calendario","subcategory_zh":"历法","subcategory_en":"Calendar","ui_url":"/es/tools/lunar_solar/","ui_url_en":"/en/tools/lunar_solar/","ui_url_zh":"/tools/lunar_solar/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online12 Western Zodiac lookup. Shows all12 signs (Aries, Taurus, Gemini...) with date range, personality traits and lucky numbers, ideal for astrology learning.","description_zh":"在线十二星座查询工具,展示白羊/金牛/双子等 12 西方星座日期范围、性格特征、幸运数字,适合星座学习和生日查询场景。","frontend_only":true,"lang":"es","method":"NONE","name":"十二星座","name_zh":"十二星座","name_en":"Shier Xingzuo","schema_url":"/es/tools/shier_xingzuo/schema.json","schema_url_en":"/en/tools/shier_xingzuo/schema.json","schema_url_zh":"/tools/shier_xingzuo/schema.json","slug":"shier_xingzuo","status":"active","subcategory":"Adivinación Occidental","subcategory_zh":"西方占卜","subcategory_en":"Western Divination","ui_url":"/es/tools/shier_xingzuo/","ui_url_en":"/en/tools/shier_xingzuo/","ui_url_zh":"/tools/shier_xingzuo/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online12 Chinese Zodiac lookup. Shows Rat, Ox, Tiger, Rabbit, Dragon... with year search and personality traits, ideal for tradition and zodiac-pairing reference.","description_zh":"在线十二生肖查询工具,展示鼠牛虎兔龙蛇马羊猴鸡狗猪 12 生肖,支持按年查询属相和性格特点,适合传统文化和生肖配对参考。","frontend_only":true,"lang":"es","method":"NONE","name":"十二生肖","name_zh":"十二生肖","name_en":"Shier Shengxiao","schema_url":"/es/tools/shier_shengxiao/schema.json","schema_url_en":"/en/tools/shier_shengxiao/schema.json","schema_url_zh":"/tools/shier_shengxiao/schema.json","slug":"shier_shengxiao","status":"active","subcategory":"Adivinación Occidental","subcategory_zh":"西方占卜","subcategory_en":"Western Divination","ui_url":"/es/tools/shier_shengxiao/","ui_url_en":"/en/tools/shier_shengxiao/","ui_url_zh":"/tools/shier_shengxiao/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online blood type personality analyzer. Shows personality traits, pros and cons, and relationship style for A/B/AB/O types, ideal for blood-type study and self-reflection.","description_zh":"在线血型性格分析工具,展示 A/B/AB/O 四大血型的性格特征、优点缺点、人际关系,适合血型研究和个人特质了解参考。","frontend_only":true,"lang":"es","method":"NONE","name":"血型性格","name_zh":"血型性格","name_en":"Xuexing Xingge","schema_url":"/es/tools/xuexing_xingge/schema.json","schema_url_en":"/en/tools/xuexing_xingge/schema.json","schema_url_zh":"/tools/xuexing_xingge/schema.json","slug":"xuexing_xingge","status":"active","subcategory":"Adivinación Occidental","subcategory_zh":"西方占卜","subcategory_en":"Western Divination","ui_url":"/es/tools/xuexing_xingge/","ui_url_en":"/en/tools/xuexing_xingge/","ui_url_zh":"/tools/xuexing_xingge/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online Tarot card divination tool. Includes22 Major Arcana cards (Fool, Magician, High Priestess...) with single draw and3-card spread (past-present-future).","description_zh":"在线塔罗牌占卜工具,内置 22 张大阿尔克那牌(愚者/魔术师/女祭司等),支持单张抽牌和三牌阵(过去-现在-未来),适合休闲娱乐和自我反思场景。","frontend_only":true,"lang":"es","method":"NONE","name":"塔罗牌","name_zh":"塔罗牌","name_en":"Tarot Card","schema_url":"/es/tools/tarot_card/schema.json","schema_url_en":"/en/tools/tarot_card/schema.json","schema_url_zh":"/tools/tarot_card/schema.json","slug":"tarot_card","status":"active","subcategory":"Destino Oriental","subcategory_zh":"东方命理","subcategory_en":"Eastern Fortune","ui_url":"/es/tools/tarot_card/","ui_url_en":"/en/tools/tarot_card/","ui_url_zh":"/tools/tarot_card/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online Zhouyi64 Hexagrams lookup. Shows all64 hexagrams (Qian, Kun, Zhun, Meng...) with images, judgments and line texts, searchable by number or name.","description_zh":"在线周易六十四卦速查工具,展示乾/坤/屯/蒙等 64 卦卦象、卦辞、爻辞,支持按序号和卦名查询,适合易经学习和传统文化研究。","frontend_only":true,"lang":"es","method":"NONE","name":"周易 64 卦","name_zh":"周易 64 卦","name_en":"Zhouyi 64Gua","schema_url":"/es/tools/zhouyi_64gua/schema.json","schema_url_en":"/en/tools/zhouyi_64gua/schema.json","schema_url_zh":"/tools/zhouyi_64gua/schema.json","slug":"zhouyi_64gua","status":"active","subcategory":"Destino Oriental","subcategory_zh":"东方命理","subcategory_en":"Eastern Fortune","ui_url":"/es/tools/zhouyi_64gua/","ui_url_en":"/en/tools/zhouyi_64gua/","ui_url_zh":"/tools/zhouyi_64gua/"},{"api_url":"","category":"Diversión y Mística","category_zh":"趣味玄学","createdAt":"2026-06-04","description":"Free online Name Score tool (entertainment only). Calculates Tian-Ge, Di-Ge, Ren-Ge and Zong-Ge from Chinese character strokes for traditional naming reference.","description_zh":"在线姓名打分工具(娱乐参考),基于汉字笔画数计算天格/地格/人格/总格,五格数理参考姓名的传统寓意,适合起名参考(请勿迷信)。","frontend_only":true,"lang":"es","method":"NONE","name":"名字打分","name_zh":"名字打分","name_en":"Name Score","schema_url":"/es/tools/name_score/schema.json","schema_url_en":"/en/tools/name_score/schema.json","schema_url_zh":"/tools/name_score/schema.json","slug":"name_score","status":"active","subcategory":"Destino Oriental","subcategory_zh":"东方命理","subcategory_en":"Eastern Fortune","ui_url":"/es/tools/name_score/","ui_url_en":"/en/tools/name_score/","ui_url_zh":"/tools/name_score/"},{"api_url":"","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":"2026-06-04","description":"Free online Chinese university info lookup. Lists Project985/211/Double First-Class universities with name, location, tier and tags, ideal for college applications.","description_zh":"在线中国大学信息查询工具,展示 985/211/双一流高校名单,包含校名/所在地/办学层次/标签,适合高考志愿填报和高校了解参考。","frontend_only":true,"lang":"es","method":"NONE","name":"中国大学","name_zh":"中国大学","name_en":"China University","schema_url":"/es/tools/china_university/schema.json","schema_url_en":"/en/tools/china_university/schema.json","schema_url_zh":"/tools/china_university/schema.json","slug":"china_university","status":"active","subcategory":"Información Mundial","subcategory_zh":"世界信息","subcategory_en":"World Info","ui_url":"/es/tools/china_university/","ui_url_en":"/en/tools/china_university/","ui_url_zh":"/tools/china_university/"},{"api_url":"","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":"2026-06-04","description":"Free online world university rankings lookup. Shows top100 universities from QS, THE and ARWU with name, country and city, ideal for study-abroad applications.","description_zh":"在线世界大学排名速查工具,展示 QS/THE/ARWU 三大排名中世界前 100 大学,包含校名/国家/所在城市,适合留学申请和高校了解参考。","frontend_only":true,"lang":"es","method":"NONE","name":"世界大学","name_zh":"世界大学","name_en":"World University","schema_url":"/es/tools/world_university/schema.json","schema_url_en":"/en/tools/world_university/schema.json","schema_url_zh":"/tools/world_university/schema.json","slug":"world_university","status":"active","subcategory":"Información Mundial","subcategory_zh":"世界信息","subcategory_en":"World Info","ui_url":"/es/tools/world_university/","ui_url_en":"/en/tools/world_university/","ui_url_zh":"/tools/world_university/"},{"api_url":"","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":"2026-06-04","description":"Free online world major city info lookup. Shows200+ cities with country, population, timezone and coordinates, ideal for geography study and cross-border work.","description_zh":"在线世界主要城市信息查询工具,展示全球 200+ 重要城市所属国家/人口/时区/坐标,适合地理学习和跨境协作参考。","frontend_only":true,"lang":"es","method":"NONE","name":"世界城市","name_zh":"世界城市","name_en":"World City","schema_url":"/es/tools/world_city/schema.json","schema_url_en":"/en/tools/world_city/schema.json","schema_url_zh":"/tools/world_city/schema.json","slug":"world_city","status":"active","subcategory":"Información Mundial","subcategory_zh":"世界信息","subcategory_en":"World Info","ui_url":"/es/tools/world_city/","ui_url_en":"/en/tools/world_city/","ui_url_zh":"/tools/world_city/"},{"api_url":"","category":"Vida y Utilidad","category_zh":"生活查询","createdAt":"2026-06-04","description":"Free online China holiday query tool. Shows statutory holidays (Spring Festival, National Day...) and traditional festivals (Dragon Boat, Mid-Autumn...) with dates.","description_zh":"在线中国节假日查询工具,展示中国法定节假日(春节/国庆等)和传统节日(端午/中秋等)日期和放假安排,适合节假日规划和日历参考。","frontend_only":true,"lang":"es","method":"NONE","name":"节假日查询","name_zh":"节假日查询","name_en":"Holiday Query","schema_url":"/es/tools/holiday_query/schema.json","schema_url_en":"/en/tools/holiday_query/schema.json","schema_url_zh":"/tools/holiday_query/schema.json","slug":"holiday_query","status":"active","subcategory":"Características Chinas","subcategory_zh":"中国特色","subcategory_en":"China Special","ui_url":"/es/tools/holiday_query/","ui_url_en":"/en/tools/holiday_query/","ui_url_zh":"/tools/holiday_query/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online Add Line Numbers tool. Custom start, padding zeros, separator, position and skip-blank options. Pure frontend, no upload, ideal for code shares and contracts.","description_zh":"在线给文本添加行号工具，支持自定义起始号、对齐位数（前补零）、分隔符、行首行尾位置以及跳过空行等 5 种选项，纯前端处理数据不上传，适合代码片段截图分享、法律合同文档编号与教学讲义讲解。","frontend_only":true,"lang":"es","method":"NONE","name":"添加行号","name_zh":"添加行号","name_en":"Add Lineno","schema_url":"/es/tools/add_lineno/schema.json","schema_url_en":"/en/tools/add_lineno/schema.json","schema_url_zh":"/tools/add_lineno/schema.json","slug":"add_lineno","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/add_lineno/","ui_url_en":"/en/tools/add_lineno/","ui_url_zh":"/tools/add_lineno/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online English case converter.7 modes (upper, lower, title, sentence, line, swap, random) combinable. Pure frontend, no upload, ideal for constants and naming.","description_zh":"在线英文大小写转换工具，支持全大写、全小写、标题首字母大写、句首大写、每行首字母大写、大小写互换、随机大小写共 7 种模式可叠加组合使用，纯前端处理数据不上传，适合代码命名常量标题生成。","frontend_only":true,"lang":"es","method":"NONE","name":"英文大小写转换","name_zh":"英文大小写转换","name_en":"En Case","schema_url":"/es/tools/en_case/schema.json","schema_url_en":"/en/tools/en_case/schema.json","schema_url_zh":"/tools/en_case/schema.json","slug":"en_case","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/en_case/","ui_url_en":"/en/tools/en_case/","ui_url_zh":"/tools/en_case/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online batch keyword replace tool. Configures per-line [find, replace] rules, literal or regex syntax, case-sensitive or whole-word options, pure frontend no upload.","description_zh":"在线关键词批量替换工具，按行配置多对 [查找, 替换] 规则，支持字面与正则两种语法，可设置大小写敏感或全词匹配，纯前端处理无需担心数据泄露，适合代码脱敏、批量改写与文本格式归一化。","frontend_only":true,"lang":"es","method":"NONE","name":"关键词批量替换","name_zh":"关键词批量替换","name_en":"Kw Replace","schema_url":"/es/tools/kw_replace/schema.json","schema_url_en":"/en/tools/kw_replace/schema.json","schema_url_zh":"/tools/kw_replace/schema.json","slug":"kw_replace","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/kw_replace/","ui_url_en":"/en/tools/kw_replace/","ui_url_zh":"/tools/kw_replace/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online newline converter.5 directions (\\n↔<br>, \\r\\n/\\r→\\n, \\n→\\r\\n) with batch escape and unescape. Pure frontend, no upload, ideal for JS strings and HTML rendering.","description_zh":"在线换行符转换工具，支持 \\n 转 <br>、<br> 转 \\n、\\r\\n/\\r 统一为 \\n、\\n 转 \\r\\n 共 5 种方向，批量转义与反转义，纯前端处理数据不上传，适合 JS 字符串嵌入、HTML 渲染与跨平台文件换行符互转。","frontend_only":true,"lang":"es","method":"NONE","name":"换行符转换","name_zh":"换行符转换","name_en":"Nl2Br","schema_url":"/es/tools/nl2br/schema.json","schema_url_en":"/en/tools/nl2br/schema.json","schema_url_zh":"/tools/nl2br/schema.json","slug":"nl2br","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/nl2br/","ui_url_en":"/en/tools/nl2br/","ui_url_zh":"/tools/nl2br/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online blank line remover.6 options (delete empty, delete whitespace-only, collapse multi-blanks, trim head/tail, etc.). Pure frontend, no upload, ideal for code and CSV.","description_zh":"在线去除文本空行工具，支持删除空行、删除仅含空白字符的行、折叠多空行为单行、删除首尾空行等 6 种选项，纯前端处理数据不上传，适合代码清理、CSV 数据清洗与文本编辑。","frontend_only":true,"lang":"es","method":"NONE","name":"去除空行","name_zh":"去除空行","name_en":"Remove Blank","schema_url":"/es/tools/remove_blank/schema.json","schema_url_en":"/en/tools/remove_blank/schema.json","schema_url_zh":"/tools/remove_blank/schema.json","slug":"remove_blank","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/remove_blank/","ui_url_en":"/en/tools/remove_blank/","ui_url_zh":"/tools/remove_blank/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online text deduplicator. Per-line or custom-separator dedup with case-sensitive, keep-empty, count and trim options. Pure frontend, no upload, ideal for email lists.","description_zh":"在线文本去重工具，按行或自定义分隔符去重，支持大小写敏感、保留空项、统计删除数与去除每项首尾空白等选项，纯前端处理数据不上传，适合名单去重、邮箱去重、CSV 数据清洗等场景。","frontend_only":true,"lang":"es","method":"NONE","name":"文本去重","name_zh":"文本去重","name_en":"Text Dedup","schema_url":"/es/tools/text_dedup/schema.json","schema_url_en":"/en/tools/text_dedup/schema.json","schema_url_zh":"/tools/text_dedup/schema.json","slug":"text_dedup","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/text_dedup/","ui_url_en":"/en/tools/text_dedup/","ui_url_zh":"/tools/text_dedup/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online text extractor. Pulls Chinese mobile, email, URL, ID and IPv4 addresses via pure-frontend regex, no upload, with dedup, sort, copy and export for contact mining.","description_zh":"在线从文本中批量提取中国手机号、邮箱地址、URL 网址、身份证号、IPv4 地址共 5 种类型，可自由勾选类型，纯前端正则处理数据不上传服务器，支持去重排序与一键复制导出，适合从客户资料批量提取联系信息。","frontend_only":true,"lang":"es","method":"NONE","name":"文本信息提取","name_zh":"文本信息提取","name_en":"Text Extract","schema_url":"/es/tools/text_extract/schema.json","schema_url_en":"/en/tools/text_extract/schema.json","schema_url_zh":"/tools/text_extract/schema.json","slug":"text_extract","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/text_extract/","ui_url_en":"/en/tools/text_extract/","ui_url_zh":"/tools/text_extract/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online text sorter. Per-line or custom-separator sort with5 modes (lexicographic, pinyin, numeric, length, shuffle) plus dedup, descending and case options. Pure frontend.","description_zh":"在线文本排序工具，按行或自定义分隔符排序，支持字典序、中文拼音、数字大小、字符长度、随机洗牌共 5 种方式，可叠加去重、降序与大小写敏感选项，纯前端处理数据不上传，适合名单随机点名与数据排序。","frontend_only":true,"lang":"es","method":"NONE","name":"文本排序","name_zh":"文本排序","name_en":"Text Sort","schema_url":"/es/tools/text_sort/schema.json","schema_url_en":"/en/tools/text_sort/schema.json","schema_url_zh":"/tools/text_sort/schema.json","slug":"text_sort","status":"frontend-only","subcategory":"Procesamiento de Texto","subcategory_zh":"文本处理","subcategory_en":"Text Processing","ui_url":"/es/tools/text_sort/","ui_url_en":"/en/tools/text_sort/","ui_url_zh":"/tools/text_sort/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780366641687,"description":"Free online Chinese Traditional converter.4 modes (S↔T, S↔TW) powered by opencc-js covering50K chars and100K word differences, regional-accurate terminology and usage.","description_zh":"在线中文繁简体转换工具，支持简体转繁体、繁体转简体、简体转台湾正体、台湾正体转简体 4 种模式，基于 opencc-js 后端，覆盖 5 万字与 10 万词汇差异，软件对应软体、打印对应列印，精准贴合地区用语习惯。","frontend_only":true,"lang":"es","method":"NONE","name":"繁简体转换","name_zh":"繁简体转换","name_en":"Zh Tw","schema_url":"/es/tools/zh_tw/schema.json","schema_url_en":"/en/tools/zh_tw/schema.json","schema_url_zh":"/tools/zh_tw/schema.json","slug":"zh_tw","status":"frontend-only","subcategory":"Procesamiento de Chino","subcategory_zh":"中文处理","subcategory_en":"Chinese Text","ui_url":"/es/tools/zh_tw/","ui_url_en":"/en/tools/zh_tw/","ui_url_zh":"/tools/zh_tw/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":1780800000001,"description":"Free online SM2 sign/verify tool. GM/T0003 standard, SM3withSM2 algorithm with auto ZA hash and pubkey derivation, custom userId, pure-frontend sm-crypto, no upload.","description_zh":"SM2 加签/验签二合一,严格国密,GM/T 0003 标准。SM3withSM2 算法,自动 ZA 杂凑 + 私钥派生公钥,支持自定义 userId,纯前端 sm-crypto 严格国密实现,数据不上传。","frontend_only":true,"lang":"es","method":"NONE","name":"SM2 加签/验签 · clawam可用","name_zh":"SM2 加签/验签 · clawam可用","name_en":"Sm2 Sign Verify","schema_url":"/es/tools/sm2_sign_verify/schema.json","schema_url_en":"/en/tools/sm2_sign_verify/schema.json","schema_url_zh":"/tools/sm2_sign_verify/schema.json","slug":"sm2_sign_verify","status":"active","subcategory":"Cifrado Asimétrico","subcategory_zh":"非对称加密","subcategory_en":"Asymmetric Cipher","ui_url":"/es/tools/sm2_sign_verify/","ui_url_en":"/en/tools/sm2_sign_verify/","ui_url_zh":"/tools/sm2_sign_verify/"},{"api_url":"","category":"Cifrado y Codificación","category_zh":"编码加密","createdAt":1780800000002,"description":"Free online SM2 encrypt/decrypt tool. 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Task list input with name, start date and duration in days, pure SVG output.","description_zh":"在线甘特图(Gantt Chart)生成器,基于任务列表(任务名, 开始, 持续天数),纯 SVG 输出。","frontend_only":true,"lang":"es","method":"NONE","name":"甘特图生成器 · clawam可用","name_zh":"甘特图生成器 · clawam可用","name_en":"Gantt Chart","schema_url":"/es/tools/gantt_chart/schema.json","schema_url_en":"/en/tools/gantt_chart/schema.json","schema_url_zh":"/tools/gantt_chart/schema.json","slug":"gantt_chart","status":"active","subcategory":"Productividad Personal","subcategory_zh":"个人效率","subcategory_en":"Personal Productivity","ui_url":"/es/tools/gantt_chart/","ui_url_en":"/en/tools/gantt_chart/","ui_url_zh":"/tools/gantt_chart/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780760226335,"description":"Free online Word Cloud generator. Frequency-based spiral layout, pure SVG output, supports Chinese and English.","description_zh":"在线词云(Word Cloud)生成器,基于词频统计 + 螺旋布局,纯 SVG 输出,中英文支持。","frontend_only":true,"lang":"es","method":"NONE","name":"词云生成器 · clawam可用","name_zh":"词云生成器 · clawam可用","name_en":"Word Cloud","schema_url":"/es/tools/word_cloud/schema.json","schema_url_en":"/en/tools/word_cloud/schema.json","schema_url_zh":"/tools/word_cloud/schema.json","slug":"word_cloud","status":"active","subcategory":"Visualización","subcategory_zh":"可视化","subcategory_en":"Visualization","ui_url":"/es/tools/word_cloud/","ui_url_en":"/en/tools/word_cloud/","ui_url_zh":"/tools/word_cloud/"},{"api_url":"","category":"Herramientas de Texto","category_zh":"文本工具","createdAt":1780760226336,"description":"Free online Braille translator. Chinese, English, digits and jianpu to Unicode braille with reverse parsing, pure JS implementation.","description_zh":"在线盲文(Braille)转换器,中英数 + 简谱 → Unicode 盲文,支持反向解析,纯 JS 实现。","frontend_only":true,"lang":"es","method":"NONE","name":"盲文(Braille)转换器 · clawam可用","name_zh":"盲文(Braille)转换器 · clawam可用","name_en":"Braille Translate","schema_url":"/es/tools/braille_translate/schema.json","schema_url_en":"/en/tools/braille_translate/schema.json","schema_url_zh":"/tools/braille_translate/schema.json","slug":"braille_translate","status":"active","subcategory":"Caracteres Raros","subcategory_zh":"小众字符","subcategory_en":"Special Characters","ui_url":"/es/tools/braille_translate/","ui_url_en":"/en/tools/braille_translate/","ui_url_zh":"/tools/braille_translate/"}]