Developer Tools100% In-Browser • Files Never Uploaded
JSON Formatter & Validator
Format, beautify, validate, and minify JSON with syntax highlighting and clear error reporting.
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Indent:
Processed 100% locally in your browser
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How to Use JSON Formatter & Validator
- 1Paste your raw or minified JSON into the editor.
- 2Click 'Beautify' to format with indentation, or 'Minify' to compress.
- 3If there is a syntax error, inspect the highlighted issue message.
- 4Click 'Copy' to use the cleaned JSON in your project.
Key Features & Benefits
- Beautify and format messy JSON with 2-space or 4-space indentation
- Instant syntax validation with exact error position and line number feedback
- Minify JSON into a compact single line for production payloads
- One-click copy formatted output or clear editor
- 100% private browser-side parsing
Frequently Asked Questions
Does this expose my sensitive JSON payloads?
No. All formatting and validation happens locally in JavaScript in your browser. Nothing is sent to any external server.
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