JavaScript Minifier

Private by design. Code never leaves your browser or touches a server.

Instant results. Minification happens as you click, no waiting.

100% free. No signup, no limits, no watermark on the output.

Works everywhere. Fully responsive on desktop, tablet and mobile.

Front-end developers who need to compress a script before deploying it to production.

Freelancers and agencies handling client sites where page speed affects SEO and conversions.

Students and hobbyists learning web development who want to see how basic minification works.

Anyone without a build pipeline who needs a quick, dependency-free way to trim JS without installing Node.js tooling.

Pre-deployment optimization. Shrink a script's file size right before pushing a site live to speed up page load.

Quick one-off compression. Minify a single JS file or inline script without setting up a full build process.

Learning and debugging. See exactly how comments and whitespace are stripped, useful when learning what minification does under the hood.

Static site and CMS workflows. Minify JS for platforms that don't have a built-in build step, like plain HTML sites or simple CMS themes.

Output looks identical to input. Make sure at least one of the Remove comments or Collapse whitespace options is checked before clicking Minify JavaScript.

Copy button doesn't seem to work. Some browsers block clipboard access until you interact with the page first; click anywhere on the page, then try Copy Result again.

Nothing happens when I click Minify JavaScript. Check that you've pasted code into the input box; the tool shows an error message if the field is empty.

I expected variable names to be shortened. This tool only removes comments and collapses whitespace; it does not rename variables or restructure logic like a full build-tool minifier would.