JSON Formatter & Validator

Clean up, format, and validate your JSON code instantly.

Input JSON 0 chars

Pro Tips:

Our tool checks for syntax errors (missing commas, quotes, etc.) automatically.
Use "Beautify" to make messy JSON readable with 4-space indentation.
Use "Minify" to compress JSON for smaller file sizes in production.

Free JSON Formatter & Validator for Developers

JSON (JavaScript Object Notation) is the undisputed king of data interchange formats on the web. However, raw API responses are often minified into a single, unreadable line of text. Our JSON Formatter & Validator makes working with JSON a breeze.

Clean, Parse, and Validate

A single missing comma or unescaped quote can break your entire application. Our tool not only beautifies your JSON with proper indentation but also validates it, pointing out the exact line number where syntax errors occur.

Syntax Highlighting: Color-coded keys, strings, and booleans for massive readability improvements.
Error Detection: Instantly catches missing brackets, trailing commas, and invalid data types.
Minify Option: Easily compress your JSON back into a single line to save bandwidth before deployment.

A Developer's Utility

Stop copying your sensitive JSON data into random unsecured websites. Our tool processes your data entirely within your browser's memory, ensuring your API keys and payload data remain strictly confidential.