全部工具All Tools
共 38 个免费在线工具，覆盖开发、编码、文档、图片、计算等场景。38 free online tools covering development, encoding, documents, images, calculations and more.
🔧开发工具Developer Tools(8)
JSON格式化、正则测试、代码格式化等开发者必备工具JSON formatter, regex tester, code formatter and more must-have developer tools.
JSON 格式化JSON Formatter
在线JSON格式化、校验、压缩、美化工具Online JSON formatter, validator, compressor and beautifier.
正则表达式测试Regex Tester
在线正则表达式测试工具，实时匹配高亮Online regex tester with real-time matching and highlighting.
随机密码生成器Password Generator
生成高强度随机密码，支持自定义长度和字符集Generate strong random passwords with customizable length and charset.
UUID 生成器UUID Generator
在线生成UUID/GUID，支持批量生成Generate UUID/GUID online, supports batch generation.
JSON 转换工具JSON Converter
JSON与XML/CSV/YAML格式互相转换Convert JSON to/from XML, CSV and YAML formats.
代码格式化Code Formatter
HTML/CSS/JS/SQL等多种语言代码美化Beautify code in HTML, CSS, JS, SQL and more languages.
JWT 解析器JWT Decoder
解码和验证JSON Web TokenDecode and validate JSON Web Tokens.
Cron 表达式生成器Cron Generator
Cron表达式生成与解析，查看执行时间Cron expression generator and parser, view execution times.
🔄编码转换Encoding(5)
Base64、URL、Unicode、HTML实体等编解码工具Base64, URL, Unicode, HTML entity encoding and decoding tools.
Base64 编解码Base64 Encoder/Decoder
Base64编码与解码，支持文本和文件Base64 encode and decode, supports text and files.
URL 编解码URL Encoder/Decoder
URL编码与解码，处理特殊字符URL encode and decode, handle special characters.
Unicode 中文互转Unicode Converter
Unicode编码与中文字符互相转换Convert between Unicode escapes and Chinese characters.
HTML 实体编解码HTML Entity Encoder
HTML实体编码与解码HTML entity encoding and decoding.
进制转换Number Base Converter
二进制、八进制、十进制、十六进制互转Convert between binary, octal, decimal and hexadecimal.
🔐加密解密Crypto(1)
MD5、SHA、AES、HMAC等哈希和加密工具MD5, SHA, AES, HMAC hash and encryption tools.
⏰时间日期Date & Time(3)
时间戳转换、日期计算、时区转换等时间工具Timestamp converter, date calculator, timezone converter and more.
✏️文本工具Text Tools(5)
文本去重、字数统计、文本对比、大小写转换等Text deduplication, word counter, text diff, case converter and more.
文本去重/去空行Text Deduplicator
去除文本中的重复行和空行Remove duplicate lines and empty lines from text.
字数统计Word Counter
统计文本字符数、词数、行数Count characters, words and lines in text.
文本对比Text Diff
在线对比两段文本的差异Compare differences between two pieces of text online.
大小写转换Case Converter
英文文本大小写转换Convert English text between uppercase, lowercase and more.
Lorem Ipsum 生成Lorem Ipsum Generator
生成Lorem Ipsum占位文本Generate Lorem Ipsum placeholder text.
🖼️图片工具Image Tools(5)
图片压缩、格式转换、二维码生成、水印等Image compression, format conversion, QR code generator, watermark and more.
二维码生成器QR Code Generator
在线生成二维码图片，支持自定义样式Generate QR code images online with customizable styles.
图片压缩Image Compressor
在线图片压缩，支持JPG/PNG/WebPCompress images online, supports JPG/PNG/WebP.
图片格式转换Image Converter
图片格式互相转换(JPG/PNG/WebP/BMP)Convert image formats (JPG/PNG/WebP/BMP).
图片加水印Image Watermark
为图片添加文字或图片水印Add text or image watermarks to images.
图片转 ICOImage to ICO
将图片转换为ICO图标格式Convert images to ICO icon format.
🎨前端工具Frontend(3)
颜色选择器、CSS渐变/阴影生成器等Color picker, CSS gradient/shadow generator and more.
🌐网络工具Network(1)
IP查询、HTTP测试、DNS查询等IP lookup, HTTP tester, DNS lookup and more.
⚙️配置文件Config(1)
YAML/Properties互转、XML格式化等YAML/Properties converter, XML formatter and more.
🧮生活计算Calculators(6)
BMI计算、单位换算、汇率转换、计算器等BMI calculator, unit converter, exchange rate, calculator and more.
在线计算器Calculator
功能齐全的在线计算器Full-featured online calculator.
BMI 计算器BMI Calculator
身体质量指数(BMI)计算Body Mass Index (BMI) calculator.
年龄计算器Age Calculator
根据出生日期计算精确年龄Calculate exact age from birth date.
单位换算器Unit Converter
长度/重量/温度/面积/体积单位换算Length/weight/temperature/area/volume unit converter.
汇率转换Exchange Rate
实时汇率查询与货币转换Real-time exchange rate query and currency conversion.
百分比计算器Percentage Calculator
多种百分比计算场景Various percentage calculation scenarios.