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Utilith

HTML, CSS & JavaScript Minifier

Minify HTML, CSS and JavaScript in one place. Comments, indentation and redundant whitespace are removed so you can see exactly how much lighter the file becomes.

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FAQ

Questions about html, css & javascript minifier

Is minifying safe for production?

Minification is safe for HTML and CSS. For JavaScript, comment and whitespace stripping is safe as long as you do not rely on automatic semicolon insertion — use a proper bundler for production builds.

How much smaller does the file get?

It depends on the source. Heavily indented files often shrink by 40 to 60 percent. Already-minified files change very little, which is a quick way to check whether a file is production-ready.

Which comments are removed from JavaScript?

Line comments and block comments are removed, but a comment marker inside a string literal is left untouched, so regular expressions and URLs survive the process.