HTML Minifier

1. Paste your HTML — Copy your HTML source code and paste it into the input area above. You can also upload an .html file or drag & drop it directly.
2. Choose options — Click "Advanced Options" to customize what gets removed: comments, whitespace, attribute quotes, optional tags, inline CSS/JS, and more.
3. Click "Minify HTML" — The tool instantly processes your code and shows the minified result with before/after size comparison.
4. Copy or Download — Click "Copy" to copy the minified HTML to your clipboard, or "Download" to save it as a file.

Page speed is a critical ranking factor for Google search results and directly impacts your website's Core Web Vitals scores. One of the simplest and most effective ways to improve load time is to minify your HTML — removing unnecessary characters that browsers don't need to render your page.

Our HTML Minifier is a best-in-class, free online tool that helps web developers, SEO professionals, and site owners instantly compress their HTML code. Unlike basic minifiers that only strip whitespace, our tool offers 10 granular optimization options that give you full control over the minification process:

• Comment removal — Strips HTML comments while preserving IE conditional comments if needed
• Whitespace collapsing — Reduces multiple spaces, tabs, and newlines to a single space
• Inter-tag whitespace — Removes meaningless whitespace between HTML tags (> < becomes ><)
• Attribute quote removal — Safely removes quotes from attributes whose values don't require them
• Optional tag removal — Removes HTML5-optional closing tags like </li>, </p>, </td>
• Default attribute removal — Strips attributes set to their default values (e.g., type="text" on inputs)
• Boolean attribute shortening — Converts disabled="disabled" to just disabled
• Inline CSS minification — Compresses CSS within <style> tags
• Inline JS minification — Compresses JavaScript within <script> tags
• Safe pre/code preservation — Automatically protects content inside <pre>, <code>, <textarea>, and <script> elements from whitespace changes

100% browser-based — your code is never uploaded to any server. The minification runs entirely in your browser using JavaScript, so your source code stays private and secure. There are no file size limits, no signup requirements, and no usage caps.

Whether you're preparing files for production deployment, optimizing WordPress themes, or reducing the weight of email templates, our HTML Minifier delivers professional-grade compression in seconds. Pair it with our CSS Minifier and JavaScript Minifier for complete front-end optimization.

There are many HTML minifier tools online, but most offer a basic "paste and compress" experience with no control over what gets minified. Here's what makes our tool the best HTML minifier available:

• 10 granular options — Unlike other tools that offer an all-or-nothing approach, you can toggle each optimization individually. Need to keep comments but remove whitespace? Want to minify inline CSS but not JavaScript? You have full control.
• 100% client-side processing — Your HTML code never leaves your browser. There is no server-side processing, no data logging, and no privacy concerns. This is critical for developers working with proprietary code, client projects, or sensitive business logic.
• File upload & drag-and-drop — Don't want to copy-paste? Upload your .html file directly or drag it onto the tool. Supports files up to 5 MB.
• Detailed compression statistics — See exactly how much space you saved: original size, minified size, percentage reduction, and bytes saved. This data helps you make informed decisions about your optimization strategy.
• Safe content preservation — Our engine automatically detects and protects content inside <pre>, <code>, and <textarea> tags. Whitespace-sensitive content is never touched, so your code blocks, poetry, and ASCII art remain intact.
• Inline CSS & JS minification — Go beyond HTML. When enabled, our tool also compresses CSS inside <style> tags (removing comments, collapsing selectors, shortening hex colors) and JavaScript inside <script> tags — all in one pass.

HTML minification is most effective in these scenarios:

• Before deploying to production — Minify your HTML files as part of your build pipeline to ensure the smallest possible file sizes reach your users. Every kilobyte saved translates to faster Time to First Byte (TTFB) and better Largest Contentful Paint (LCP) scores.
• Optimizing WordPress themes & templates — WordPress themes often contain extensive HTML comments and formatting. Running them through a minifier can reduce template file sizes by 30-50%, improving server response times.
• Email template optimization — HTML emails need to be as compact as possible since many email providers impose size limits. Minification removes unnecessary whitespace and comments without affecting the visual rendering.
• Improving Core Web Vitals — Google uses Core Web Vitals as a ranking signal. Smaller HTML files download faster, parse faster, and render faster — directly improving your First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Time to Interactive (TTI).
• Reducing bandwidth costs — For high-traffic websites, even small file size reductions add up. A 20% reduction across millions of page views can save significant bandwidth costs, especially on CDN-delivered content.

Pro tip: For the best results, combine HTML minification with GZIP compression on your server and browser caching via proper Cache-Control headers. Use our .htaccess Generator to set up GZIP and caching rules automatically.