JSON Formatter & Validator
Format, beautify, validate, and minify JSON payloads client-side.
How to use this tool
- 1Paste your raw JSON into the input box.
- 2Click 'Format' to indent or 'Minify' to compress.
- 3Identify syntax error line positions immediately.
Common scenario
Debugging API responses, webhook payloads, and config files.
Privacy Guaranteed
No account, sign-in, or cookies required. You can bookmark and use this utility offline.
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Frequently Asked Questions
Can it handle large JSON files?
Yes, files up to several megabytes format smoothly within the browser memory.
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