JSON Formatter & Validator: Format and Validate JSON Online

Working with JSON is a daily task for developers, but minified JSON can be a nightmare to read. Learn how to format JSON, validate syntax, and convert between data formats.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data format used for API responses, configuration files, data storage, and server-client communication.

Why Format JSON?

Minified JSON:

{"name":"John","age":30,"city":"New York"}

Formatted JSON is much more readable with proper indentation and line breaks, making debugging significantly easier.

How to Format JSON Online

1. Paste your JSON into the input field
2. Click "Process"
3. Copy the formatted output

JSON Validation

Our tool automatically validates your JSON and shows syntax errors with line numbers and descriptions.

Convert Between Formats

Convert JSON to YAML or XML with a single click - perfect for working with different APIs and configurations.

Related Developer Tools

EveryTask offers a complete suite of developer utilities:

• Base64 Encode/Decode - Essential for data URLs and API auth
• JWT Decoder - Debug authentication tokens
• Regex Tester - Test patterns before implementing

Working with JSON from APIs

When debugging API responses:

1. Copy the JSON response
2. Format it with our tool
3. Check for errors or unexpected values
4. If authentication issues arise, use our JWT decoder to inspect tokens

Conclusion

Our free JSON formatter saves time and prevents errors. Format, validate, and convert JSON in seconds - no signup required!

More dev tools:

• Base64 Encoder/Decoder
• JWT Token Decoder
• Regex Pattern Tester