💻 Developer Tools
JSON Formatter & Validator
Validate, pretty-print, or compact JSON directly in your browser.
Ready to use · Runs in your browser · No signup
Your JSON parsed successfully.
How to use the JSON Formatter & Validator
Paste JSON to validate its syntax and produce a clean formatted or compact representation without sending the content to a server.
- Paste or type JSON into the input area.
- Fieldlet parses the JSON using the browser's native JSON parser.
- Valid JSON is re-serialized using your chosen indentation.
Last reviewed for accuracy:
Common questions
Is my JSON uploaded?
No. This tool parses and formats the text locally in your browser.