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.

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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.

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JavaScript Minifier | brevio