💡 Featured Tool: Generate structured JSON-LD schemas instantly with our Schema Generator.

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JSON Formatter & Validator

Beautify, format, and validate JSON instantly. Free, private, no signup.

? Free Forever? No Signup? Runs in Browser? 100% Private
Input JSON
Formatted Output

Free JSON Formatter & Beautifier

Paste messy JSON from API responses, config files, or databases and instantly see it formatted with proper indentation. Also validates syntax and points out errors. Everything runs in your browser.

Does this validate JSON?
Yes — detects syntax errors and shows the exact error message.
Is there a size limit?
No hard limit. Very large files may be slower but will process correctly.
What does minify do?
Removes all whitespace for smaller production file sizes.
Can I use keyboard shortcuts?
Yes — Ctrl+Enter (or Cmd+Enter) formats the JSON instantly.
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