JS Minify Tool
Minify JavaScript with real variable renaming and dead-code removal, live as you type.
Minified with Terser (real minification — renamed variables, removed whitespace/comments, shortened where safe), live as you type. Runs entirely in your browser; nothing you type is sent anywhere.
What is JS Minify Tool?
Paste JavaScript and get it minified instantly using Terser, the same production-grade minifier used by major build tools — real minification (shortened variable names, removed whitespace and comments, dead-code elimination), not just a whitespace strip.
FAQ
Yes — Terser is what webpack, Rollup, and Vite use by default for JS minification in production builds, running here entirely in your browser via WebAssembly-free pure JS.
Terser is widely used in production and generally safe for standard JavaScript, but always test minified output before shipping it, the same as you would with any build tool.