Developer Tool

HTML Minifier

Reduce HTML file size by removing whitespace, comments, and unnecessary characters.

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Minification Options
Input HTML
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About This Tool

HTML Minifier

Minify your HTML files by stripping whitespace, comments, and unnecessary tags to reduce page size and improve load time.

Why Use This Tool?

  • Reduce HTML file size to improve website speed and PageSpeed Insights score
  • Remove HTML comments and extra whitespace before going live
  • Improve Time To First Byte (TTFB) for better Core Web Vitals
  • Used by frontend developers and webmasters optimising for SEO
  • Minify HTML templates before deploying to CDN or production servers

Overview

HTML is the skeleton of every webpage, and while production HTML is readable and well-structured during development, serving bloated HTML to end users wastes bandwidth and slows page loads. Every extra space, newline, and HTML comment adds bytes that the browser must download before it can render anything. Our HTML Minifier strips your HTML of all unnecessary whitespace, comments, blank lines, and optional closing tags to produce the smallest possible valid HTML that renders identically to the original. A typical well-commented, formatted HTML file can be reduced by 20–50% through minification. This improvement, combined with Gzip compression at the server level, can significantly improve your page's Time to First Byte (TTFB) and First Contentful Paint (FCP) — both key metrics for Google's Core Web Vitals assessment. Web developers use HTML minification as a standard pre-deployment step, and our tool makes it accessible without needing a build tool or command line setup.

How to Use

  • 1

    Paste Your HTML

    Copy your full HTML file content or page source and paste it into the input area.

  • 2

    Configure Options

    Choose whether to also remove inline script/style whitespace, strip HTML comments, and collapse boolean attributes.

  • 3

    Click Minify

    Press the Minify button. Your HTML is compressed instantly, removing all unnecessary characters.

  • 4

    Check the Reduction

    See the original and minified file sizes and the percentage reduction achieved.

  • 5

    Copy or Download

    Click Copy to clipboard or Download as an .html file ready for deployment.

Frequently Asked Questions

No. HTML minification removes only whitespace and comments between tags — it does not change any content, attributes, or structure that affects rendering.
If you enable "Minify inline scripts and styles," inline JS and CSS comments will also be removed. Otherwise, only HTML comments are stripped.
Yes. Even dynamically generated HTML benefits from minification. Many frameworks (Next.js, Laravel) offer built-in HTML minification in production mode.
Faster page load times improve Core Web Vitals scores, which are a Google ranking factor. Minification is one of many optimisations that cumulatively improve SEO performance.
Yes. The tool handles large HTML files in the browser. For very large single-page app outputs (>5 MB), processing may take a few seconds.