What is JavaScript Minifier?
JS Minifier removes comments and whitespace from JavaScript code.
How to use JavaScript Minifier
Paste JS code and click Minify JS.
Key features
- Minifies JavaScript scripts
Common use cases
- Optimizing script payload sizes
Technical details & standards
Strips JS comments client-side.
Frequently asked questions
Does it mangle variables?
No, it performs safe whitespace removal.
Is my data safe?
All processing happens entirely in your browser. Your data never leaves your device and is never sent to or stored on a server.
Does it work offline?
Yes. Once the page has loaded, most tools keep working without an internet connection.