JavaScript Minifier
Free javascript minifier — shrink JavaScript by removing whitespace and comments, in your browser.
Runs entirely in your browser — nothing you enter is uploaded or stored.
JavaScript Minifier
Free javascript minifier — shrink JavaScript by removing whitespace and comments, in your browser.
Paste your javascript on the left and the result is produced instantly — entirely in your browser. Your data never leaves the page, which you can confirm from the Network panel or our privacy policy.
Frequently asked questions
How do I use the JavaScript Minifier?
Paste or type your javascript on the left and the minified appears on the right — copy or download it. Everything runs in your browser.
Is my data uploaded anywhere?
No. This tool runs entirely in your browser — your input is never sent to a server. You can verify it in the Network tab or in our Content-Security-Policy.
Is the JavaScript Minifier free?
Yes — completely free, no sign-up and no limits. Everything happens client-side.