CM

CSS/JS/HTML Minifier

Developer Tools · Free · Runs entirely in your browser

Paste CSS, JS or HTML — get smaller code with comments and extra whitespace removed, along with the size saved.

Advertisement
Input
Minified Output
Advertisement

How to use — CSS/JS/HTML Minifier

  1. Choose the code type — CSS, JavaScript, or HTML.
  2. Paste your code.
  3. Click Minify — comments and extra whitespace are removed, and you'll see the size saved.

FAQ

What are the benefits of minifying?

File size drops 20–60% — pages load faster, which is good for both SEO and user experience. The browser doesn't need formatted code.

Can minified code change behavior?

This tool does safe minification — it removes comments and whitespace, not variable names. Still, test JS edge cases involving ASI (missing semicolons). For production builds, you might also look at tools like Terser/cssnano.

How do I make minified code readable again?

This is one-way — keep the original safely. If you need the formatted version back, use a "beautifier" tool.

What does HTML minifying do?

It removes HTML comments and extra whitespace between tags. Content inside <pre> and <textarea> is preserved.

Advertisement