HTML Minifier
Compress HTML by removing whitespace and comments to shrink file size.
HTML Minifier strips unnecessary whitespace, comments, and line breaks from your HTML to reduce file size. It's free to use and requires no sign-up, so you can compress a page's markup in seconds. Web developers optimizing load times and site owners working on Core Web Vitals scores both benefit from smaller HTML files.
How does HTML Minifier work?
Hand-written or CMS-generated HTML often contains extra indentation, blank lines, and comments left over from development, none of which the browser actually needs to render the page. This tool removes those characters along with redundant attribute spacing, while leaving the actual tag structure and content untouched. Smaller markup means less data for the browser to download and parse, which can shave meaningful time off page load, especially on mobile networks.
How to use HTML Minifier
- Paste your unminified HTML code into the input box.
- Click minify to compress the markup.
- Copy or download the minified HTML for deployment.
Key features
- Removes whitespace, line breaks, and HTML comments to cut file size.
- Preserves inline scripts, styles, and attribute values without altering them.
- Processes markup instantly with no server-side upload required.
- Free for unlimited use with no sign-up.
Related tools
Undo the compression anytime with the HTML Beautifier, or minify other assets using the CSS Minifier and JavaScript Minifier.
Frequently asked questions
Is HTML Minifier free?
Yes, minifying HTML with this tool is completely free and doesn't require signing up. There's no cap on how many files you can process.
Will minifying my HTML affect SEO?
Minifying itself doesn't directly change your rankings, but faster page load times from a smaller HTML file can positively influence Core Web Vitals metrics that search engines do consider. It's one of several performance optimizations worth combining, alongside minified CSS and JavaScript.
Can I still edit minified HTML afterward?
Technically yes, but with all the whitespace removed it becomes much harder to read and edit directly. Keep an unminified version as your working copy and use the HTML Beautifier if you ever need to expand it again.
Does minification remove HTML comments containing important notes?
Yes, standard comments are stripped out as part of the minification process since browsers don't need them to render the page. If you rely on comments for documentation, keep them in your source file rather than the deployed minified version.
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