Strip comments and whitespace from JavaScript safely.
Free · Runs in your browser · Last updated
Lightweight JS minifier that removes line/block comments and unnecessary whitespace while preserving strings, regex literals and template literals.
All processing for JS Minifier happens locally inside your browser using JavaScript. Your input is never uploaded to a server, logged, or shared with third parties.
Yes. JS Minifier is completely free for both personal and commercial projects. There are no usage limits, no sign-up, and no premium tier.
All processing happens locally in your browser using JavaScript. Your input is never uploaded to our servers, logged, or shared with any third party.
Once the page has loaded, the tool runs entirely client-side. You can disconnect from the internet and it will keep working in the same browser tab.
JS Minifier works in all modern browsers, including the latest versions of Chrome, Firefox, Safari, Edge, Brave, and Opera, on desktop and mobile.
No. JS Minifier runs in any modern web browser with no installation, browser extension, or account required.