JSON Formatter
Format, validate, minify and beautify your JSON data online. 100% free, runs in your browser.
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Features
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100% Free
No signup required. No limits on usage. Simple and fast online tools.
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Privacy First
All processing happens in your browser. Your data never leaves your device.
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Fast & Reliable
Instant formatting with syntax highlighting and error detection.
JSON Formatter & Validator
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. Our online JSON formatter helps you beautify, validate, and minify your JSON data instantly.
How to use
- Paste your JSON data into the input textarea
- Click "Format" to beautify with proper indentation
- Click "Minify" to compress JSON to a single line
- Click "Validate" to check if your JSON is valid
- Copy or download the formatted result
- Formatting API responses for debugging
- Validating configuration files
- Compressing JSON for production
- Learning JSON structure