INKTOOLS

DEV NO.001

JSON Formatter & Validator

Paste any JSON — instantly format, minify, validate and pinpoint syntax errors.

This tool runs entirely in your browser. Nothing is uploaded to any server.

Input
Output
 
  
 
 
What is this
 
什么是 JSON 格式化工具


JSON 是现代 Web 的通用数据格式，但接口返回的 JSON 常常被压缩成一行，难以阅读和调试。本工具粘贴即得：格式化（美化缩进）、压缩（移除空白）、校验（定位第一个语法错误的行号与列号）三种模式一键切换。


What is a JSON formatter


A JSON formatter turns minified machine output into readable, structured text. This tool runs three modes — beautify, minify and validate — locally in your browser. Errors are reported with exact line and column numbers so you can fix them immediately.


如何使用


    

  1. 在输入框粘贴 JSON 文本（或点击「示例」载入样例）。
    2. 

  2. 点击「格式化」或「压缩」，结果实时显示在输出框。
    3. 

  3. 点击「复制」带走结果；出现红色错误提示时，按行号修复原文。
    4. 



How to use


    

  1. Paste JSON into the input box (or load the sample).
    2. 

  2. Click Format or Minify; the result appears instantly.
    3. 

  3. Hit Copy to take the result. If a red error appears, fix the reported line and try again.
    4. 

 
  
  
 
FAQ
 
 
  Is my JSON uploaded anywhere?   
No. Formatting and validation happen entirely in your browser; data only exists in your device's memory.
 
  How large can the JSON be?   
Files up to several MB are handled smoothly. If your browser slows down, remove unneeded fields first.
 
  What does the line/column error mean?   
The validator reports the line and column of the first syntax error — often a missing comma or stray quote — so you can jump straight to it.