Developer Tools
JSON Formatter & Validator
Format, validate, beautify, and minify JSON code with syntax error detection.
100% Client-Side Privacy•No Registration Needed•Instant Free Export
Indentation:
How to Use JSON Formatter & Validator
- 1Paste unformatted or raw JSON string into the code editor.
- 2Click "Format / Beautify JSON" or "Minify JSON".
- 3If errors exist, review the error message and line hint.
- 4Copy or download the formatted JSON file.
Features & Capabilities
Pretty print with custom indentation (2 or 4 spaces)
JSON syntax error highlighting & line detection
One-click JSON minification
Copy or download formatted JSON
Frequently Asked Questions
Is my JSON data uploaded to external servers?
No, JSON parsing and formatting runs entirely inside your browser JavaScript engine.
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