JavaScript Minifier

Free online JavaScript Minifier. No sign-up needed, and it runs in your browser.

Processed on your device

Minify JavaScript with Terser: shorter names, no comments or spaces, and dead code removed. Works with modern JS.

Your JavaScript

Compress (remove dead code, simplify) Shorten variable names Also shorten top-level names ES module Keep /*! licence */ comments

Minified JavaScript

"Top-level names" also renames your global functions and variables — only tick it if nothing else calls them by name.

How to use