What is HTML Validate?
An HTML Minifier is a performance optimization tool that compresses your HTML code by removing unnecessary characters without changing its functionality. When developers write code, they use indentation, comments, and newlines to make it readable. However, browsers don't need these extra characters to render the page. This tool strips out whitespace, comments, and formatting, significantly reducing the file size. Smaller HTML files mean faster download times, lower bandwidth usage, and improved Core Web Vitals (LCP) for your website. This is a crucial step in modern web development deployment pipelines. Our tool runs entirely in your browser, allowing you to minify sensitive templates or proprietary code without ever uploading it to a server.
Input Formats
- Raw HTML code
- HTML5 templates
- Snippets with inline CSS/JS
Output Results
- Minified HTML string
- Reduced file size statistics
- Copy-ready code
Key Features
Who is this for?
Web Performance Optimization
Frontend developers minifying HTML templates before deploying to production to improve Lighthouse scores.
Email Marketing
Marketers compressing HTML email templates to ensure they don't get clipped by Gmail (102KB limit).
Ad Tech
Ad ops professionals minifying HTML5 banner ads to meet strict file size limits (e.g., 150KB) for ad networks.
How to Use
Paste your HTML code into the input area.
Click 'Minify' to compress the code.
Check the 'Beautify' option if you want to reverse the process.
Copy the result to your clipboard.
Examples
Input
<!DOCTYPE html>
<html>
<head>
<title>Hello</title>
</head>
<body>
<h1>World</h1>
<!-- This is a comment -->
</body>
</html>Output
<!DOCTYPE html><html><head><title>Hello</title></head><body><h1>World</h1></body></html>Common Errors
- Broken layout due to missing spaces between inline-block elements
- Removed conditional comments (IE specific)
- Syntax errors in inline JavaScript
Code Examples
Node.js (html-minifier)
const minify = require('html-minifier').minify;
const result = minify('<p> Hello </p>', {
removeAttributeQuotes: true,
collapseWhitespace: true
});