Formatters
JavaScript Beautifier
Format, minify, and validate JavaScript code instantly. ES6+ support with syntax highlighting and customizable indentation.
Statistics
Beautified Output
Minified Output
Paste JavaScript to beautify or minify
How to use
- Paste your JavaScript into the box and click Beautify to see cleanly indented, readable code with syntax highlighting.
- Click Minify to remove comments and compress whitespace for the smallest possible bundle size.
- Toggle between 2 spaces, 4 spaces, or Tab indentation using the options next to the output.
- Use Load Sample to paste a complete ES6+ class example and see the formatter in action.
What this is for
Minified or auto-generated JavaScript is nearly impossible to read or debug. This tool restores proper indentation and line breaks so you can inspect logic, trace bugs, and understand unfamiliar code. The built-in validator catches syntax errors using the browser runtime before you copy the result. When the code is ready, minify it to cut load times in production.
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