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JSON Formatter & Validator
Format and validate JSON.
Paste your JSON to instantly beautify it and check for errors.
Beautify
Turn minified or messy JSON into readable, indented output.
Validate
Catch JSON syntax errors instantly, with a clear error message.
Free & Unlimited
No signup, no watermarks, no limits. Use it as many times as you like.
What is a JSON Formatter?
A JSON formatter is a tool that helps you format and beautify JSON data into a readable structure. It is useful for developers, testers, and analysts working with APIs and data exchange.
How to use this tool
Paste your JSON data into the input box and click the format button. The tool will validate and display formatted JSON instantly.
Features
- Format and beautify JSON
- Validate JSON structure
- Highlight errors
- Improve readability
Frequently Asked Questions
The tool validates your JSON as it formats it, and displays a clear error message describing the problem instead of formatted output.
Yes. Paste minified or compact JSON and the tool will beautify it into readable, indented output.
Yes. 100% free — no account required, no watermarks, no usage limits.