免费在线开发者工具

为前后端工程师、API 开发者和数据分析师量身打造的实用工具集。

格式化、美化、压缩并校验 JSON 数据，具备精准的代码错误行号定位与树状图展示。

实时测试和调试正则表达式，支持匹配高亮显示和捕获组实时分析。

在浏览器中快速对 URL、查询参数和百分号编码字符进行编码与解码。

FAQ

Developer Tools FAQ

Is it safe to paste proprietary JSON or API responses?

Yes. The JSON Formatter runs entirely in your local browser sandbox. No input is ever sent over the network or saved anywhere.

Does the validator show the exact line of syntax errors?

Yes. Our validator inspects the error pointer and displays exact line and column numbers to help you fix syntax problems instantly.