📋 JSON Formatter & Validator

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and machines to parse. It's the most common format for API responses, configuration files, and data storage in modern web applications.

However, minified JSON (without spaces or line breaks) is difficult to debug. Our JSON formatter beautifies your data with proper indentation, making it easy to spot missing commas, brackets, or syntax errors. It also includes a compression feature to minify JSON for production use.

How to Use

Paste any JSON string into the editor and click Format. The tool will validate the syntax and display it with clean indentation. Use the Minify button to compress JSON by removing whitespace — ideal for reducing API payload sizes.

Common JSON Errors

• Trailing commas after the last element
• Missing quotes around object keys
• Unmatched brackets or braces
• Using single quotes instead of double quotes
• Invalid number formats (e.g., leading zeros)