🔧 JSON Formatter
Format, beautify, minify and validate JSON data with our powerful online tool. Features syntax highlighting, error detection, and instant formatting.
Quick Examples
Input Methods
Drop JSON file here or click to browse
Supports .json files up to 10MB
Formatted JSON
No JSON Data
Use one of the input methods above to load JSON data
How to Format JSON
Input Your JSON
Paste JSON data, upload a file, or load from a URL. Our tool accepts any valid JSON format including minified or malformed JSON.
Choose Format Options
Select indentation style, sorting options, and output preferences to customize the formatting to your needs.
Format & Validate
Click format to beautify your JSON with proper indentation and validation. Errors will be highlighted with helpful messages.
Copy or Download
Copy the formatted JSON to clipboard or download as a file. Perfect for development, debugging, and data analysis.
Powerful JSON Tools
Smart Formatting
Automatically format and beautify JSON with proper indentation, line breaks, and syntax highlighting for better readability.
JSON Validation
Real-time validation with detailed error messages and line highlighting to help you fix JSON syntax errors quickly.
Minify & Compress
Minify JSON data to reduce file size for production use while maintaining data integrity and structure.
Sort & Organize
Sort object keys alphabetically and organize nested structures for consistent formatting across your projects.
Multiple Input Methods
Paste JSON directly, upload files, or load from URLs. Supports large files up to 10MB with fast processing.
Mobile Optimized
Works perfectly on all devices with responsive design, touch-friendly controls, and optimized performance.
Perfect For These Use Cases
Development
Format configuration files, API responses, and data structures for better code readability and debugging.
Debugging
Validate and format JSON data to identify syntax errors, missing commas, and structural issues quickly.
Data Analysis
Clean and format JSON datasets for analysis, reporting, and data visualization tools and frameworks.
API Testing
Format API responses and request payloads for testing, documentation, and integration workflows.
Frequently Asked Questions
What is JSON and why format it?
JSON (JavaScript Object Notation) is a lightweight data format. Formatting makes it human-readable with proper indentation and line breaks, making debugging and development much easier.
Can this tool handle large JSON files?
Yes, our formatter can handle JSON files up to 10MB in size. For very large files, processing may take a few seconds but will complete successfully.
Is my JSON data secure and private?
Absolutely! All JSON processing is done locally in your browser. No data is sent to our servers, ensuring your JSON data remains completely private and secure.
What's the difference between format and minify?
Format (beautify) adds proper indentation and line breaks for readability. Minify removes all whitespace and formatting to create the smallest possible file size.
Can I load JSON from external APIs?
You can try loading from URLs, but CORS (Cross-Origin Resource Sharing) restrictions may apply for external APIs. Public APIs that allow CORS will work fine.