Dev Tools
JavaScript Formatter
Formats JS for maximum readability, or minifies for production.
Esc Clear
Paste JavaScript code to format
What does JavaScript Formatter?
A tool to beautify and minify JavaScript code — organizes messy code and compresses it for production.
How to use JavaScript Formatter?
- Paste your JavaScript code into the input field.
- Choose "Beautify" for readable code or "Minify" for compressed code.
- Copy the output.
Key features
- Beautify with proper indentation and spacing
- Minify to reduce file size
- No server — everything runs in the browser
Frequently asked questions
Does formatting JS change behavior?
No. Whitespace and newlines in JS are cosmetic — the code behaves exactly the same.
Does minify remove comments?
Yes. All JS comments (//, /* */) are removed as part of the minification process.
Is this tool free?
Yes, this tool is completely free and requires no registration.
Is my data saved?
No. All calculations happen in your browser only — no data is sent to any server.