JSON Formatter & Validator
Beautify, minify and validate JSON in your browser.
100% private Instant Free forever
About the JSON Formatter & Validator
The JSON Formatter & Validator makes messy JSON readable. Paste any JSON to pretty-print it with clean indentation, minify it to the smallest size, or instantly spot syntax errors with a clear message.
How to use the JSON Formatter & Validator
- 1Paste your JSON into the input box.
- 2Click Beautify to format or Minify to compress.
- 3Fix any error shown, then copy the result.
Popular use cases
- Debug API responses and config files.
- Shrink JSON payloads before shipping to production.
- Validate JSON syntax before importing it.
Frequently asked questions
Is my JSON sent anywhere?
No. Parsing and formatting happen entirely in your browser.
What happens if my JSON is invalid?
You will see the exact error message so you can locate and fix the problem.
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