JSON Formatter & Validator
Paste your JSON into the input box to format, validate, and beautify it instantly. Perfect for debugging and API development.
Why Use Our JSON Formatter & Validator?
🚀 Instant Formatting
Format and beautify your JSON in seconds with proper indentation and syntax highlighting.
🔒 100% Secure
Your JSON never leaves your browser. All processing happens locally for maximum privacy.
💯 Free Forever
No hidden charges, no registration required. Completely free tool for developers.
📱 Mobile Friendly
Works perfectly on all devices - desktop, tablet, and mobile phones.
Key Features
- Syntax validation with detailed error messages
- Beautiful formatting with proper indentation
- Support for complex nested JSON structures
- Copy to clipboard functionality
- Error highlighting and line numbers
- Works offline after page load
- No data upload required
- Completely free to use
Frequently Asked Questions
How does the JSON Formatter & Validator work?
Our tool uses JavaScript's built-in JSON parser to validate your input and then formats it with proper indentation and line breaks. The validation checks for syntax errors, missing commas, unmatched brackets, and other common JSON issues.
Is my JSON data safe and secure?
Yes, absolutely! All JSON processing happens locally in your browser. Your data never leaves your device and is not stored on any server. This ensures complete privacy and security for your sensitive JSON data.
What types of JSON validation are performed?
The validator checks for: valid JSON syntax, proper quoting of strings, correct use of commas, matching brackets and braces, valid data types (strings, numbers, booleans, arrays, objects), and proper nesting of JSON structures.
Can I format large JSON files?
Yes, you can format moderately large JSON files. The tool handles complex nested structures efficiently, though extremely large files (several MB) might experience slower performance depending on your device's capabilities.
Is this tool completely free?
Yes, our JSON Formatter & Validator is 100% free to use with no hidden charges, registration requirements, or usage limits. We believe in providing valuable tools to the developer community without any cost barriers.
Do I need to install any software?
No installation required! Our formatter works entirely in your web browser. You can use it on any device with a modern browser - desktop, laptop, tablet, or smartphone. It even works offline once the page is loaded.
What's the difference between minified and formatted JSON?
Minified JSON has all unnecessary whitespace removed to reduce file size, while formatted JSON uses proper indentation and line breaks to make the structure human-readable. Our tool converts minified JSON into beautifully formatted, readable JSON.
Can I use this for commercial projects?
Yes, you can use our JSON Formatter & Validator for both personal and commercial projects without any restrictions. There are no licensing fees or usage limits for commercial applications.