Our free HTML Minifier & Compressor provides an interactive solution to compress HTML5 web pages, strip comments, collapse redundant whitespaces, and shorten boolean attributes directly inside your web browser. Engineered for web developers, SEO specialists, and PageSpeed optimization, it safely reduces document file weight without breaking DOM node relationships or script execution. Need to inspect or debug minified HTML? Use the built-in HTML Beautifier mode to re-format dense markup strings into clean 2-space indented structures. All code processing runs 100% client-side in secure local JavaScript—meaning your HTML code is never sent to external servers.
<!--[if ...]>)disabled="disabled" ➔ disabled).html files and download minified index.min.html directlyPaste your uncompressed HTML markup into the editor, click a sample preset, or upload a local .html file.
Select comment preservation preferences, toggle boolean attribute shortening, and click 'Minify HTML' or 'Beautify HTML'.
Inspect the live byte reduction percentage badge, then copy the output or download index.min.html.
Collapses whitespace, strips redundant syntax tokens, collapses boolean attributes, and minifies inner CSS/JS blocks without breaking DOM nodes.
Switch seamlessly between minifying for production and beautifying / un-minifying HTML into clean 2-space indented tags for effortless debugging.
All HTML parsing and compression execute locally in your browser. No files, code blocks, or markup are ever transmitted to any external server.
HTML Minification strips redundant text nodes (spaces, tabs, newline breaks) and developer documentation comments (<!-- comment -->) without altering element semantics.
Collapsing boolean attribute syntax (e.g. converting disabled="disabled" to disabled) and minifying embedded <style> and <script> blocks further compresses payload size (\( ext{Savings \%} = rac{ ext{Raw Bytes} - ext{Minified Bytes}}{ ext{Raw Bytes}} imes 100\)).
Reducing raw HTML document size directly improves Google Core Web Vitals, lowering First Contentful Paint (FCP) and Largest Contentful Paint (LCP) timings across modern network connections.