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HTML/CSS/JS minifier

Strip whitespace and comments from HTML, CSS, or JavaScript to shrink the file size — right in your browser.

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Input code

Minified output
Original size
0 bytes
Minified size
0 bytes
Saved
0%
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How it works

Two steps, no account

1

Paste your code and pick a language

HTML, CSS, or JavaScript — each uses a different set of minification rules.

2

Minify

See the size before and after, then copy the result.

FAQ

Common questions

What does minifying actually do?
It strips comments and collapses whitespace so the code takes up less space and downloads faster — without changing what it does. This is a lightweight, regex-based minifier, not a full parser, so treat the output as a quick size check rather than a production build step for complex code.
Is my code sent anywhere?
No. Minification runs entirely in your browser using JavaScript — nothing is transmitted, logged, or stored.
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Code Minifier

A code minifier removes unnecessary characters from source code without changing its functionality, making the code smaller and faster to load.

Benefits of Minification

  1. Reduced File Size: Smaller files load faster and use less bandwidth
  2. Improved Performance: Faster page load times and better user experience
  3. Lower Bandwidth Costs: Reduced data transfer saves hosting costs
  4. Better Compression: Minified files compress better for additional savings

What Gets Removed

  • Comments and formatting
  • Unnecessary whitespace and line breaks
  • Long variable names (in advanced minification)
  • Unused code (in advanced minification)

Best Practices

  • Always keep original source files
  • Use source maps for debugging
  • Test minified code before deployment
  • Include minification in your build process