HTML Minify & Compress
Compress and minify HTML code instantly. Remove whitespace, comments, optional tags and inline scripts. Make your pages load faster with smaller HTML files.
Why Use HTML Minify?
Professional-grade HTML compression with fine-grained control over every aspect of the minification process.
4 Compression Levels
Choose from Aggressive, Standard, Safe, or Conservative compression to match your exact production requirements and risk tolerance.
Comment Removal
Strips all HTML comment blocks from the output. Conditional IE comments can optionally be preserved since they affect layout in older browsers.
Whitespace Collapse
Intelligently collapses multiple whitespace characters, tabs, and line breaks into single spaces, drastically reducing file size in heavily indented files.
Optional Tag Removal
Safely removes optional closing tags like </li>, </td>, </tr>, and </p> which are specified as optional in the HTML5 specification.
Boolean Attribute Collapse
Converts verbose boolean attributes like disabled="disabled" to their short form disabled, reducing bytes in forms and interactive elements.
Inline CSS Minification
Optionally minifies CSS code found inside <style> tags and inline style="" attributes, applying color compression and whitespace removal.
Inline JS Minification
Compresses JavaScript code found inside <script> tags, removing comments and unnecessary whitespace from inline scripts.
Redundant Attribute Removal
Removes default attribute values that browsers assume anyway, such as type="text" on inputs and method="get" on forms.
Minify HTML in 5 Steps
Compress your HTML code in seconds with a simple, intuitive workflow. No installation or registration required.
Paste Your HTML
Copy your HTML source code from your editor, CMS, or template file and paste it into the HTML Source Code input area above.
Select Compression Level
Choose Aggressive for maximum size reduction in production, Standard for typical use cases, or Conservative if you need to preserve formatting.
Enable Advanced Options
Click "Show advanced options" to enable comment removal, boolean attribute collapse, optional tag removal, inline CSS/JS minification, and more.
Click Minify HTML
Hit the Minify HTML button to instantly compress your code. All processing happens in your browser — your HTML is never sent to any server.
Copy the Result
Use the Copy HTML button to copy your minified code to the clipboard, then paste it into your production HTML file or template.
HTML Compressor & Minifier — Optimize Your Web Pages
HTML Minify is a free, fast, and reliable online tool for compressing and minifying HTML code. Whether you're optimizing a landing page, a web application, or a large e-commerce site, reducing HTML file size directly contributes to faster page loads, better Core Web Vitals scores, and improved SEO rankings.
What is HTML Minification?
HTML minification removes all unnecessary characters from HTML source code without changing how the page renders in a browser. This includes stripping whitespace, line breaks, HTML comments, optional closing tags, and redundant attribute values. The result is functionally identical HTML that is significantly smaller in file size.
Google's PageSpeed Insights, GTmetrix, Lighthouse, and other web performance tools all recommend minifying HTML as a standard optimization. Minified HTML contributes to faster Time to First Byte (TTFB), improved First Contentful Paint (FCP), and better Largest Contentful Paint (LCP) scores.
HTML Minifier Features
Use HTML Minify to compress HTML and make your website load faster. Key options include:
- Remove HTML comments
- Collapse whitespace & line breaks
- Remove optional closing tags
- Collapse boolean attributes
- Remove redundant attributes
- Remove type attributes
- Minify inline CSS
- Minify inline JavaScript
- Remove optional quotes
- Add timestamp to output
- 4 compression levels
- Browser-side processing only
Benefits of Minifying HTML
Minified HTML files transfer faster over the network because the browser downloads less data on every page request. For pages with significant inline content, templates, or server-side rendered HTML, the savings can be substantial. Combined with Gzip or Brotli compression on your server, minified HTML achieves even greater transfer size reductions.
From an SEO perspective, page speed is a confirmed Google ranking factor and contributes to your overall Core Web Vitals scores which directly influence search rankings. Minifying HTML is one of the quickest wins in web performance optimization.
Browser-Side Processing
All HTML processing with HTML Minify happens entirely in your browser using JavaScript. Your code is never sent to any server or stored anywhere. This makes HTML Minify safe for confidential, proprietary, or commercially sensitive HTML templates. The tool continues to work completely offline once the page has loaded.
Frequently Asked Questions
Common questions about HTML minification, compression, and using the HTML Minify tool.
HTML minification removes unnecessary characters from HTML source code without changing how the page renders. This includes whitespace, line breaks, comments, optional closing tags, and redundant attributes. The result is functionally identical HTML that loads faster because it transfers fewer bytes over the network.
HTML Minify typically reduces HTML file size by 10–40% depending on the original code. Files with heavy indentation, many comments, and inline scripts see the greatest reduction. Combined with server-side Gzip or Brotli compression, the total transfer size reduction can exceed 80% compared to uncompressed, unminified HTML.
Yes, HTML minification is generally safe. Standard and Conservative levels are very safe for production use. The Aggressive level removes optional closing tags and quotes which are valid per the HTML5 spec but should be tested in your target browsers. Always keep your original unminified HTML as a backup and test the minified output in staging before deploying to production.
Aggressive removes everything possible including optional tags, quotes, and applies inline CSS/JS minification. Standard applies balanced compression safe for most production sites. Safe preserves optional closing tags and quotes but removes comments and collapses whitespace. Conservative only collapses whitespace and removes obvious redundancy with minimal risk.
Yes! Enable "Minify inline CSS" to compress code inside <style> tags and style="" attributes. Enable "Minify inline JavaScript" to compress code inside <script> tags. These options provide significant additional size reductions when your HTML contains substantial inline styles or scripts.
Boolean HTML attributes don't require a value — the presence of the attribute is enough. For example, disabled="disabled" can be shortened to just disabled, checked="checked" to checked, and selected="selected" to selected. This is fully valid per the HTML5 specification and saves several bytes per boolean attribute in your markup.
In HTML5, type="text/javascript" on script tags and type="text/css" on style tags are default values — browsers assume them if omitted. Removing these redundant type attributes reduces file size without any functional change. This is a common recommendation in HTML performance audits.
Absolutely. HTML Minify processes all HTML entirely in your browser using JavaScript. Your code is never uploaded to any server, never logged, and never stored. You can safely use this tool with proprietary, confidential, or commercially sensitive HTML templates and source code.