JavaScript Minifier
// Compress JavaScript to reduce file size
#About JavaScript Minifier
Free online JavaScript minifier. Remove whitespace, comments, and unnecessary characters from JavaScript to reduce file size. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
How do I minify JavaScript to improve load times? ▾
Paste your JavaScript into the input field and the minifier will strip all comments, remove unnecessary whitespace, and collapse the code to produce a compact output that reduces file size and improves page load performance.
Is minified JavaScript still functional? ▾
Yes, minified JavaScript executes identically to the original. Only non-essential characters like comments, extra whitespace, and line breaks are removed. All logic, variables, and function calls remain intact.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/javascript-minifier" width="100%" height="500" frameborder="0" title="JavaScript Minifier"></iframe>