Beautify and minify JavaScript code
Want a deeper walkthrough? Read our complete guide to JavaScript Formatter →
JavaScript Formatter beautifies JS for readability or minifies it with a real minifier (Terser) to reduce size — all client-side.
It helps with code review and quick optimization without a build step. Your code never leaves the browser.
Minification uses Terser, a widely used JavaScript minifier, running locally in your browser.
Terser preserves behavior for valid JavaScript; always test the output, especially for very large files.
No, formatting and minifying happen entirely on your device.
