Paste minified JSON and get perfectly formatted output.
Input
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Beautified Output
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Free Online JSON Beautifier
Make your JSON readable with this free JSON beautifier. Pretty print minified JSON with 2-space, 4-space, or tab indentation. Perfect for debugging compressed API responses and making config files human-readable.
What is JSON Beautification?
Pretty printing JSON adds proper indentation and line breaks to compressed JSON data. This makes it easy to read, understand, and edit. Our JSON formatter preserves all data while making the structure clear.
Indentation Options
2 spaces — Most common in JavaScript/TypeScript projects
4 spaces — Common in Python and Java projects
Tab — Preferred in some coding standards
When to Beautify JSON
Debugging minified API responses
Reading configuration files
Code reviews and documentation
Learning JSON structure
Preparing JSON for version control diffs
Frequently Asked Questions
Is this tool free to use?
Yes, completely free with no limits, no signup, and no ads. Use it as many times as you need for development, debugging, or data processing tasks.
Is my data sent to any server?
No. All processing happens locally in your browser using JavaScript. Your data never leaves your device, making it safe for sensitive or proprietary information.
What browsers are supported?
This tool works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. It also works on mobile browsers. JavaScript must be enabled for the tool to function.
Is there a size limit for input data?
You can process data up to several megabytes. Performance depends on your browser and device. For typical use cases under 1MB, processing is instant.
Can I use this for commercial projects?
Yes, there are no restrictions on how you use the output. The tool is free for personal, educational, and commercial use without attribution required.