How to Use
- Paste raw HTML into the input field, or choose an
.htmlfile. - Pick Basic or Maximum compression, then adjust comment removal, whitespace collapsing, or boolean attribute folding if needed.
- Click โMinify HTMLโ and review the original size, minified size, and savings percentage.
- Click โCopy Minified HTMLโ to paste it into your project, or โDownload .min.htmlโ to save the file.
Example: click โLoad Sampleโ to insert a launch-page snippet with comments, line breaks, boolean attributes, and redundant type attributes, then compress it and compare the savings.
Core Features
- Instant Size Reduction: Remove extra line breaks, indentation, and safe comments so HTML is ready for production.
- 100% Client-Side Privacy: Your source code stays in the current browser and is never uploaded, ideal for private templates and commercial projects.
- Basic or Maximum Mode: Basic mode focuses on safe compression; maximum mode can also collapse boolean attributes and remove redundant
typeattributes. - Detailed Savings Metrics: See original size, minified size, saved bytes, and saved percentage to measure page speed benefits.
- Copy or Download: Copy minified HTML in one click, or download a
.min.htmlfile for your project.
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Calculation Logic
HTML minification removes characters the browser usually does not need for rendering, such as whitespace between tags, indentation, repeated spaces, and regular HTML comments. Basic mode protects content inside script, style, pre, and textarea so whitespace-sensitive snippets stay intact.
Maximum mode adds common safe optimizations, such as folding disabled="disabled" into disabled and removing default type="text/javascript" or type="text/css" attributes from script and style tags.
Everything runs locally in your browser, so sensitive source code is not transmitted over the internet. Always preview critical pages before publishing minified templates, especially when inline scripts or third-party snippets are involved.
FAQ
Does minifying HTML improve SEO?
It can help. Smaller HTML reduces transfer size, improves response speed, and can indirectly support Core Web Vitals and search experience.
Will this tool fix broken HTML?
No. It focuses on minification and file-size optimization. It does not repair unclosed tags, invalid nesting, or template syntax problems.
Is my source code uploaded?
No. Minification, metrics, copying, and downloading all happen in your current browser with no upload or logging.
Can minification break my website?
Basic mode removes relatively safe comments and whitespace while protecting whitespace-sensitive tags. Maximum mode performs additional attribute optimizations, so preview complex templates before deploying.
Can I unminify the HTML later?
You can use an HTML Formatter or editor formatting command to restore readable indentation, but removed comments and redundant characters cannot be recovered automatically.