Developer Tools
JavaScript Minifier
🔒 Runs in your browser
Minify JavaScript code by removing whitespace and comments. Instant, runs in your browser. No upload required.
Basic whitespace and comment minifier. For production, use a proper bundler (esbuild, Terser, Webpack). Your code never leaves the browser.
How to Minify JavaScript Free — Remove Comments & Whitespace (2026)
Minify JavaScript in your browser by removing comments and whitespace. Shows byte savings before and after. No upload, runs client-side.