About HTML & CSS Minifier
Strip unnecessary whitespace, comments, trailing semicolons, and delimiters from HTML markup and CSS style sheets to optimize website performance and Lighthouse scores.
Key Capabilities & Features
- HTML & CSS dual mode compression
- Instant byte savings calculation and percentage metric
- Comment and whitespace stripping
- 1-Click clipboard copy
- Zero file size limits
How to Use HTML & CSS Minifier
Choose Mode
Select either HTML Minifier or CSS Minifier.
Paste Source Code
Paste your unminified HTML or CSS into the input editor.
Copy Minified Code
Review the file size savings percentage and copy the compressed output.
Privacy & In-Browser Execution Guarantee
Minification is processed purely client-side without sending source code to any cloud servers.
Frequently Asked Questions
Will minifying break my CSS styles or HTML layout?
No. Minification only strips extraneous whitespace and non-functional comments, preserving all semantic tags, classes, and CSS cascade rules.