All tools
JSON Formatter & Validator
Paste JSON to beautify it, check it for errors, or minify it into one line.
Runs in your browser Free, unlimited
How to use
- Paste your JSON into the box.
- Press Format to beautify or Minify to compact it.
- Fix any error shown, then copy the result.
Frequently asked questions
Is my JSON sent to a server?
No. Formatting and validation happen entirely in your browser.
Does it show where my JSON is broken?
Yes. Invalid JSON shows the parser's error message, including the position of the problem.
Can I minify JSON too?
Yes. Press Minify to remove all whitespace for a compact single line.
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