Free Tool
JSON Formatter & Validator
Format, validate, and minify JSON data with syntax highlighting. Perfect for debugging APIs and working with configuration files.
Input JSON
Paste your JSON or upload a file
Formatted Output
Your formatted JSON will appear here
JSON Tips
Common JSON Errors:
- • Trailing commas in arrays or objects
- • Single quotes instead of double quotes
- • Unquoted keys in objects
- • Comments (JSON doesn't support comments)
Valid JSON Data Types:
- • String: "text"
- • Number: 123, 3.14
- • Boolean: true, false
- • Null: null
- • Object: {"key": "value"}
- • Array: [1, 2, 3]