Format, validate and minify JSON — Chinese-safe, runs in your browser.
格式化、校验并压缩 JSON,支持中文与错误定位。全程在浏览器本地完成。
A JSON formatter takes raw, minified or badly indented JSON and turns it into a readable, properly indented tree. It also validates the syntax and flags the exact line and column where an error occurs, and it can minify JSON back down for production use. Everything happens inside your browser, so payloads containing tokens, credentials or customer data are never transmitted anywhere.
JSON 格式化工具把压缩的、未缩进的或格式混乱的 JSON 变成结构清晰、缩进正确的可读文本,同时校验语法并精确定位出错的行与列,也可以把 JSON 重新压缩用于生产环境。所有处理都在你的浏览器内完成,包含令牌、密钥或用户数据的 JSON 不会被传输到任何地方。
No. Parsing, formatting and validating all run in your browser using the built-in JSON engine. Nothing is uploaded, logged or stored.
不会。解析、格式化、校验全部使用浏览器内置的 JSON 引擎在本地完成,不上传、不记录、不存储。
The usual causes are trailing commas, single quotes instead of double quotes, unquoted keys, or comments. JSON is strict: no trailing commas, no comments, and all keys must be double-quoted strings.
常见原因是结尾多余逗号、用了单引号、键没有加引号、或夹带了注释。JSON 语法严格:不允许结尾逗号和注释,键必须用双引号。
Yes. The formatter keeps Unicode characters readable instead of converting them to \uXXXX escapes, so Chinese, Japanese and emoji stay legible.
不会。格式化后中文、日文、emoji 保持可读,不会被转义成 \uXXXX 编码。
Only your device memory. Because everything is local, files that would be rejected by an upload limit on other sites work fine here.
只受你设备内存限制。因为完全本地处理,别的网站会因上传上限拒绝的大文件在这里也能用。
Encode or decode Base64 text with UTF-8 and URL-safe support.…
对文本进行 Base64 编码或解码,支持 UTF-8 中文与 URL 安全字符…
Percent-encode or decode URLs, params and text.…
对网址、参数或文本进行 URL 百分号编码与解码,方便调试接口与链接。…
Generate MD5, SHA-1, SHA-256 or SHA-512 hashes.…
用 MD5、SHA-1、SHA-256 或 SHA-512 为文本生成哈希值,常…
Generate random UUID v4 identifiers.…
一键生成多个随机 UUID v4,用于主键、追踪 ID 与测试数据。…
Decode a JSON Web Token locally, no upload.…
在浏览器本地解码 JSON Web Token 的 Header 与 Paylo…
Test regular expressions and see matches live.…
实时测试正则表达式,查看匹配数量与命中内容,方便调试抓取与替换规则。…