HTML Minifier

Enterprise HTML Minifier

Professional-grade HTML compression tool that works entirely in your browser. No data sent to servers.

Fast & Efficient

100% Client-Side

Detailed Analytics

History Tracking

Enterprise HTML Minifier

PRO

Help & Tips

Minification Settings

Safe Mode Balanced optimization - Preserves HTML structure

Standard Mode Safe optimization

Aggressive Mode Maximum compression

Custom Advanced settings

Custom Settings

HTML Options ℹ️

Remove HTML comments Remove comment tags except those containing preserve keywords

Collapse whitespace Reduce multiple spaces/tabs to single space

Remove empty attributes Remove attributes with empty values

Remove optional tags Remove optional HTML tags (html, head, body)

Normalize attributes Normalize quotes and attribute formatting

Sort attributes Sort HTML attributes alphabetically

CSS Options ℹ️

Minify inline CSS Minify CSS inside style tags and style attributes

Compress colors Convert #RRGGBB to #RGB where possible

Minify CSS variables Minimize CSS custom properties

JavaScript Options ℹ️

Minify inline JavaScript Minify JavaScript inside script tags

Preserve ES6+ syntax Preserve modern JavaScript syntax (let, const, arrow functions)

Preservation Rules ℹ️

Preserve comments containing: Comments containing these keywords won't be removed (comma-separated)

Ignore tags: Skip minification inside these tags (comma-separated)

Preserve IE Conditionals Preserve Internet Explorer conditional comments

Input Methods

No file chosen

Quick Actions

Minification Safety

Safe mode ensures:

• HTML structure is preserved
• Only whitespace and comments are removed
• No functional changes to your code
• Preview will match original functionality

Untitled.html 0 bytes

0 characters

1 line

Minified Output 0 bytes

0 characters

1 line

Changes Preview

No changes detected. Your HTML is already optimized.

Compression Analytics

0 KB

Original Size

0 KB

Minified Size

0 KB

Saved

0%

Compression

0%

Load Improvement

0ms

Processing Time

Original: 0 bytes Minified: 0 bytes

Recent Minifications

No recent minifications yet. Start by minifying some HTML!

Warnings & Errors

Keyboard Shortcuts

Minify HTML Ctrl + M

Copy Result Ctrl + C

Undo Ctrl + Z

Redo Ctrl + Y

Toggle Diff View Ctrl + D

Save to History Ctrl + S

Clear All Ctrl + Shift + C

Toggle Theme Ctrl + T

Paste HTML Ctrl + V

Load Sample Ctrl + L

Preview Minified HTML

Help & Tips

About Safe Mode

Safe mode ensures your HTML structure remains intact while only removing unnecessary whitespace and comments. This guarantees that the minified output behaves exactly like the original.

Tip: Always start with Safe Mode to ensure your website functionality is preserved.

Settings Guide

Remove HTML comments: Removes all HTML comments except those containing preservation keywords.

Collapse whitespace: Reduces multiple spaces, tabs, and line breaks to single spaces.

Preserve ES6+ syntax: Ensures modern JavaScript features like arrow functions, template literals, and let/const are not broken.

Preserve IE Conditionals: Keeps Internet Explorer conditional comments for compatibility.

Best Practices

1. Always preview your minified HTML before using it in production.

2. Use the Diff View to see exactly what changed.

3. Save important minifications to history for future reference.

4. Test the preview to ensure functionality is preserved.

Common Issues

Preview doesn't match: This usually happens when aggressive settings are used. Switch to Safe Mode.

JavaScript breaks: Enable "Preserve ES6+ syntax" and ensure your JavaScript is properly formatted.

CSS issues: Disable CSS minification if your CSS uses complex selectors or pseudo-classes.