HTML Minifier

The HTML Minifier compresses HTML code by removing whitespace, comments, and unnecessary attributes while preserving the page structure and content. Minified HTML files are smaller, which improves page load times and reduces bandwidth costs. This minifier removes comments, collapses whitespace between tags, and removes redundant attributes. It is essential for production websites where performance matters.

Formula

Minification removes:
- HTML comments
- Whitespace between tags
- Empty attributes
- Redundant quotes
- Default attributes (type=text on inputs)

Size reduction: 10-30%

Example

Input (245 chars): <!-- Header --> <div class="header"> <h1>Title</h1> </div> Output (38 chars): <div class="header"><h1>Title</h1></div> Savings: 84% size reduction (example)

How to Use

  1. Paste your HTML code into the input field
  2. Click minify to remove whitespace and comments
  3. The output shows compressed HTML
  4. Copy the minified HTML
  5. Use it in production for faster page loads

Frequently Asked Questions

Does HTML minification break pages?

No. The minifier preserves all HTML structure and content. It only removes whitespace, comments, and redundant attributes. The minified page renders identically to the original. Keep the original for development.

What about inline JavaScript and CSS?

The minifier can also minify inline JavaScript and CSS within script and style tags. However, for best results, keep JS and CSS in external files and minify them separately with dedicated minifiers.

Should I minify HTML in development?

No. Keep HTML readable during development. Only minify for production. Most modern frameworks (Next.js, Astro, Gatsby) automatically minify HTML during production builds.

Does minification affect SEO?

No. Search engines can read minified HTML without issues. In fact, minification can improve SEO indirectly by improving page load speed, which is a ranking factor. Google recommends minifying HTML, CSS, and JS.

Can I minify HTML with templating syntax?

Be careful with templating languages like Jinja, EJS, or Handlebars. The minifier may remove whitespace that is significant for template logic. Test thoroughly or minify after template rendering.