HTML Minifier
Quickly and easily minify HTML code to reduce file size. Paste your HTML Code below.
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Why Minify HTML?
HTML minification removes unnecessary characters from markup — whitespace, comments, and optional closing tags — reducing page size and improving load times without changing how the page renders.
What Gets Removed
- Whitespace between tags and inside attributes
- HTML comments (
<!-- -->) - Optional end tags like
</li>,</td> - Boolean attribute values —
disabled="disabled"→disabled - Empty attributes and redundant quote types
Performance Benefits
- Smaller HTML → faster time-to-first-byte
- Reduces browser parse time on large documents
- Amplified by gzip: minified HTML compresses ~10% better
- Improves Google PageSpeed Insights "Minify HTML" audit
Does minifying HTML affect functionality?
Properly minified HTML should render identically. Whitespace removal can occasionally affect inline-block elements that rely on whitespace between them for spacing, but this is fixable with CSS. Always test minified HTML in a browser before deploying.
Should I minify inline CSS and JS in HTML?
Yes — most HTML minifiers also minify inline <style> and <script> blocks. This is beneficial for critical CSS inlined in the <head>. However, for large scripts, prefer external files so they can be cached separately.
How much does HTML minification save?
Savings vary widely — from 5% on already-compact HTML to 30%+ on template-heavy pages with lots of indentation. Minification is most impactful for large, SSR-generated HTML pages. Single-page apps typically have small HTML shells where the JS bundle is the bigger optimization target.