JSON Formatter & Validator
Beautify, minify and validate JSON instantly — with clear error messages when something is off.
Runs entirely in your browser · nothing is uploaded · free & unlimited
How it works
- 1Paste or type JSON into the box — it's checked against the parser live as you go.
- 2Pick your indent (2 spaces, 4 spaces or tabs), then click Beautify to pretty-print or Minify to squash it to one line.
- 3Copy the clean result straight into your code, config file or API request.
Frequently asked questions
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