Minify HTML code to reduce file size and improve website performance.
Compress HTML code
Paste any HTML — a full page, a template partial, or a component snippet. The minifier handles both inline styles and scripts within the document.
Click Minify to strip whitespace, comments, and redundant attributes. The resulting HTML renders identically in all browsers but transfers faster over the network.
Use the minified output in your production environment. For ongoing workflows, integrate automated minification into your build pipeline (webpack, Vite, Gulp) rather than manually minifying each release.
| Resource | Typical size reduction | Impact on performance | Render-blocking? |
|---|---|---|---|
| HTML | 10–30% | Reduces initial response size | Yes (main document) |
| CSS | 20–50% | Improves FCP, LCP | Yes |
| JavaScript | 30–60% | Reduces parse time, TTI | Yes (unless async/defer) |
HTML minification is most valuable for server-rendered pages with large amounts of whitespace between elements — especially pages generated by template engines like Jinja2, Handlebars, or PHP that produce formatted output. Single-page applications (SPAs) typically have small HTML entry points, so the gain there is minimal. For static sites, minify HTML as part of the build step (e.g., using html-minifier-terser in a Node.js pipeline). Combined with GZIP compression, minified HTML reduces the time to first byte (TTFB) and improves Google's assessment of your page experience signals.