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JSON Formatter & Validator
Clean up ugly JSON payloads, locate syntax errors with line indicators, and toggle between 2-space, 4-space, and minified views.
Length: 0 charactersUTF-8 • Client-Side Validator
How to Use JSON Formatter & Validator
- 1Input JSONPaste raw JSON into the editor window or click "Load Sample".
- 2Format or MinifyClick "Beautify 2 Spaces", "Beautify 4 Spaces", or "Minify".
- 3Copy ResultCopy the validated and formatted JSON payload directly to your clipboard.
Key Capabilities
- Real-time syntax validation with specific error messages
- Format with 2-space or 4-space indentation
- Minify JSON into a compact single-line string for production use
- Sample JSON loader for testing
- 100% private in-browser validation
Frequently Asked Questions
Will my API keys or sensitive JSON data be safe?
Yes! The entire JSON validation and parsing executes entirely inside your browser JavaScript engine. No data ever leaves your computer.
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