>Fafa Dev Tools

HTML Minifier

Minify HTML by removing whitespace, comments, and optional characters. Free online HTML minifier with size savings display.

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What is HTML Minifier?

HTML minification removes unnecessary characters from HTML files without changing how the page renders. This includes whitespace, line breaks, comments, and optional attributes. Minified HTML files load faster, reducing page load time and improving Core Web Vitals scores.

How to Use

  1. Paste your HTML code in the input area
  2. The minified HTML appears instantly in the output panel
  3. Check the size savings below the output
  4. Download the result as a .html file

Examples

Minify HTML

Input<div> <h1>Hello</h1> <!-- comment --> <p>World</p> </div>
Output<div><h1>Hello</h1><p>World</p></div>

Remove comments

Input<!-- Header section --> <header> <nav>Menu</nav> </header>
Output<header><nav>Menu</nav></header>

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Frequently Asked Questions

How much size does HTML minification save?

Typically 15-30% depending on the original HTML. Files with lots of whitespace, indentation, and comments save more. Pages generated by frameworks with heavy whitespace benefit the most.

Does minification change how the page looks?

No. Minification removes only unnecessary whitespace, comments, and optional characters. The rendered page is identical. However, inline JavaScript and CSS within the HTML should be minified separately for best results.

Should I keep the original unminified HTML?

Yes. Always keep the original (development) version. Minified HTML is for production only. Use build tools to automate minification in your deployment pipeline.