HTML Minifier — Free Online Tool
Remove comments and collapse whitespace between tags to shrink your HTML.
About HTML Minifier
The HTML Minifier reduces the size of your markup by stripping comments and collapsing the whitespace that browsers ignore. Lighter HTML downloads faster, which helps page speed and improves the experience for visitors on slower connections.
All minification happens locally in your browser, so even private or large pages are processed instantly without ever being uploaded. After each run the tool tells you exactly how many characters were saved so you can measure the gain.
How to Use HTML Minifier
- Paste your HTML markup into the input box.
- Click 'Minify' to remove comments and collapse whitespace.
- Check the saved-character summary shown above the output.
- Click 'Copy Result' to use the minified HTML.
Key Features
Removes HTML comments and collapses whitespace between tags
Reduces long runs of spaces to keep markup compact
Reports the exact number of characters saved
One-click copy and clear for a smooth workflow
100% client-side with no uploads, signup, or limits
Frequently Asked Questions
What does the HTML Minifier do?
It removes HTML comments, collapses the whitespace between tags, and reduces long runs of spaces to a single space. The visible output of your page is unchanged while the file becomes smaller.
Could minifying affect how my page renders?
In most layouts it will not, but be aware that whitespace can be meaningful inside elements like <pre> or where CSS uses white-space: pre. Review such pages after minifying.
Does it minify inline CSS and JavaScript?
This tool focuses on the HTML markup itself. For embedded styles or scripts, run the dedicated CSS Minifier or JS Minifier on those blocks for the best results.
Is my HTML uploaded to a server?
No. Everything is processed in your browser, so your markup stays on your device and you can minify as many pages as you want for free.