HTML Minifier

About the HTML Minifier

Our HTML minifier reduces the size of your HTML files by removing unnecessary characters — whitespace, indentation, line breaks, and HTML comments — without changing the functionality or rendering of your page. Smaller HTML files load faster, improving both user experience and Core Web Vitals scores.

What Gets Removed?

• HTML Comments — <!-- ... --> blocks that are visible in source but serve no function in production
• Extra Whitespace — Multiple consecutive spaces and tabs collapsed to a single space
• Line Breaks & Newlines — Removes all line breaks between tags for maximum compression

How Much Can You Save?

HTML minification typically saves 10–30% of file size on developer-formatted HTML. When combined with Gzip or Brotli compression on the server (which is standard for most CDNs and web servers), total transfer size can be reduced by 70–90%.

When to Minify HTML

Minify HTML for production deployments. Keep unminified HTML in your source repository for maintainability. Most modern build tools like Vite, webpack, and Parcel automatically minify HTML in production builds. This tool is useful for quick one-off minification, template optimization, or environments without a build pipeline.

Performance Impact

HTML is parsed by the browser immediately on download. Smaller HTML means the browser starts building the DOM sooner, which directly improves First Contentful Paint (FCP) and Time to Interactive (TTI) metrics — key factors in Google's Core Web Vitals ranking signals.