Free Online HTML Minifier
HTML Minifier is a free online tool that strips unnecessary whitespace and comments from HTML markup to reduce file size.
Paste HTML into the input editor or upload an HTML file to instantly minify your markup and see how much space it saves.
Why use this HTML Minifier?
- Minify HTML instantly in your browser.
- Remove comments and collapse extra whitespace.
- Keep script, style, pre, and textarea content intact.
- Catch obviously mismatched or unclosed tags.
- See the size reduction before you download.
- Upload HTML files directly from your computer.
- Copy or download the minified output.
- Process HTML directly in your browser.
Common Questions
What is an HTML Minifier?
An HTML Minifier removes comments, extra whitespace, and line breaks from HTML markup so the file is smaller without changing how the page renders.
How do I minify HTML?
Paste your HTML into the input editor or upload an HTML file. The HTML Minifier automatically strips unneeded whitespace and comments and generates a compact version.
Will minifying break my scripts or styles?
No. Content inside script, style, pre, and textarea elements is left untouched, since whitespace inside those tags can be meaningful.
Does HTML Minifier check for errors?
It performs a best-effort check for obviously mismatched or unclosed tags. If a problem is found, an error message is shown instead of producing broken output.
Is this HTML Minifier free?
Yes. This HTML Minifier is free to use online and processes your HTML directly in your browser.