Online JSON Formatter & Validator
Our JSON Formatter & Validator is an essential tool for developers working with JSON data. Paste your messy JSON code to instantly get a clean, human-readable, and validated output. It's fast, secure, and runs entirely in your browser.
Your JSON Input
Formatted Output
Clean and readable JSON
Output will appear here...How to Use Our JSON Beautifier
- Paste Your Code: Copy your JSON data and paste it into the "Your JSON Input" text area.
- Click Format: Press the "Format & Validate JSON" button.
- Get Results: The tool will instantly validate the syntax. If valid, it will "pretty print" the JSON in the "Formatted Output" box, making it easy to read.
- Repair with AI: If your JSON is invalid, a "Repair with AI" button will appear. Click it to let our AI assistant try to fix the syntax errors for you.
- Copy Your Code: Use the copy button to grab the clean, formatted JSON for use in your projects.
Why is JSON Validation Important?
JSON (JavaScript Object Notation) has strict syntax rules. A single missing comma, an extra bracket, or a misplaced quote can make the entire data structure invalid. This leads to failed API calls, application errors, and hours of debugging. Our online JSON validator helps you catch these syntax errors instantly, ensuring your data is compliant and ready for use.