JSON Formatter & Validator
Validate, format, and minify JSON data.
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About JSON Formatter & Validator
Validate, prettify, and minify your JSON data instantly. This essential developer tool helps you debug complex JSON structures, ensuring they are syntactically correct and easy to read, or condensed for production use.
How to Use
- Paste your raw JSON data into the input field.
- Use 'Prettify' to add indentation; the tool will automatically validate your JSON as you format.
- Review the validation status indicator at the bottom to check for syntax errors or trailing commas.
- Use 'Minify' to remove all whitespace for efficient data transmission.
Common Use Cases
- Debugging API responses with unformatted or nested JSON data.
- Cleaning up configuration files like package.json or settings.json.
- Verifying JSON structure before deploying web services or database updates.
Technical Details
Uses high-performance parsing logic to identify syntax errors and reconstruct the JSON tree with custom indentation settings. All processing is 100% local.
Frequently Asked Questions
- Is my data sent to a server?
- No. The validation and formatting happen entirely in your browser memory for maximum privacy.
- Can it handle huge files?
- Yes, our engine is optimized for speed, though very large files (several MBs) may cause brief UI lag depending on your device.
100% Private & Secure
This tool runs entirely in your browser using client-side technology. Your files and data are never sent to a server, ensuring 100% privacy and speed.