JSON Formatter

Format, validate, minify and browse JSON in your browser, nothing is uploaded

Valid JSON

12 keys · 17 values · 3 levels deep · 189 bytes → 297 bytes

Sort keysAllow comments and trailing commas

JSON

{"name":"Uber Tools","version":2,"isFree":true,"tags":["json","formatter"],"owner":{"name":"Ada","email":null},"tools":[{"id":1,"title":"JSON Formatter"},{"id":2,"title":"UUID Generator"}]}

Formatted

{
  "name": "Uber Tools",
  "version": 2,
  "isFree": true,
  "tags": [
    "json",
    "formatter"
  ],
  "owner": {
    "name": "Ada",
    "email": null
  },
  "tools": [
    {
      "id": 1,
      "title": "JSON Formatter"
    },
    {
      "id": 2,
      "title": "UUID Generator"
    }
  ]
}

{
  "name": "Uber Tools",
  "version": 2,
  "isFree": true,
  "tags": [
    "json",
    "formatter"
  ],
  "owner": {
    "name": "Ada",
    "email": null
  },
  "tools": [
    {
      "id": 1,
      "title": "JSON Formatter"
    },
    {
      "id": 2,
      "title": "UUID Generator"
    }
  ]
}

How to format and validate JSON

Paste or type your JSON; it's checked as you type.
Format it with 2 or 4 spaces or tabs, or minify it to one line; sort its keys if you like.
Browse it as a tree, opening and closing objects and arrays with a click.
Copy or download the result.

Questions

How do I find an error in my JSON?

JSON that can't be read shows why, with its line and column and the line marked where it goes wrong, such as a missing comma or an extra quote.

Can it read JSON with comments?

Yes: allow comments and trailing commas, as in JSONC config files, and they're taken out before it's read.

What does minify do?

It takes out every space and line break, making the JSON as small as it can be for sending or storing.

Is my JSON uploaded?

No, it's checked and formatted by your browser, so API keys and private data stay on your device.