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JSON Formatter & Validator

Paste JSON to instantly format, validate, and beautify. Real-time error detection. Copy output or minify for production.

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JSON Formatter and Validator

Paste raw or minified JSON and format it with 2-space, 4-space, or tab indentation. The validator shows errors in real time as you type. Use Minify to compress JSON for production API payloads.

Frequently Asked Questions

Does it validate my JSON in real time?
Yes — as you type, the status shows ✓ Valid or the exact error location.
Can I minify JSON?
Yes. Click Minify to remove all whitespace for production use.
Is my JSON sent to a server?
No. Uses JavaScript's native JSON.parse() and JSON.stringify() locally.
What's the size limit?
Browser memory only — typically up to 10MB works fine.

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