HTML Minifier — Minify HTML Online Free
Paste your HTML and minify it instantly. Remove comments, collapse whitespace, and reduce file size.
How to html minifier
- 1Paste or type your HTML code into the input textarea
- 2Click the Minify button to process the code
- 3Review the minified output and the before/after size comparison
- 4Click Copy to copy the result or Download to save it as a file
About This Tool
Minifying HTML removes unnecessary characters from your markup without changing its behavior. This includes stripping HTML comments, collapsing consecutive whitespace characters, and trimming blank lines. The result is a smaller file that loads faster over the network.
While modern build tools like Webpack and Vite handle minification as part of the build process, there are many situations where a quick online HTML minifier is useful: checking the size impact of minification on a template, cleaning up email HTML, preparing snippets for embedding, or processing one-off files without setting up a build pipeline.
This tool performs basic, safe minification using pattern-based rules. It removes
<!-- comments -->, collapses runs of whitespace to a single space, and
trims leading/trailing whitespace from lines. For production applications, consider a dedicated
tool like html-minifier-terser that can also remove optional closing tags and
collapse boolean attributes.
Frequently Asked Questions
Basic minification (removing comments and extra whitespace) is safe and will not change how browsers render your page. The tool does not alter tag structure or attribute values.
It depends on how much whitespace and how many comments your HTML contains. Typical reductions range from 10% to 30% for well-formatted source code. Heavily commented templates may see larger savings.
The tool removes HTML comments but does not minify inline CSS or JavaScript. For those, use the dedicated CSS Minifier and JS Minifier tools.
No. All minification happens locally in your browser using JavaScript. Your code never leaves your machine.