JSON Formatter & Validator

What it does

The JSON formatter turns compact or messy JSON into readable, indented text, and checks that it is valid at the same time. If the JSON is broken, it tells you exactly which line and column is wrong and why, for example a missing comma, single quotes, or a trailing comma.

How to use

1. Paste JSON into the Input box, drop a .json file on it, or click Sample.
2. Pick Format to beautify or Minify to strip all whitespace.
3. Choose 2 spaces, 4 spaces or tabs, and turn on Sort keys to order object keys alphabetically.
4. Copy or download the result. Shortcuts: Ctrl/Cmd+Enter runs, Ctrl/Cmd+Shift+C copies.

Example

{"name":"devtools","tags":["json","formatter"]}

becomes

{
  "name": "devtools",
  "tags": [
    "json",
    "formatter"
  ]
}