What does this tool do?
The HTML Minifier strips comments, collapses redundant whitespace, and removes the gaps between tags to shrink your markup's file size. It's perfect for developers and site owners who want faster page loads and lighter HTML files.
How to use it
- Paste or type your data into the left field.
- The result is generated instantly on the right.
- Use the Copy button to grab the output.
How it works
Paste your HTML into the left box and the tool processes it instantly. It removes <!-- --> comments, condenses consecutive spaces, tabs and line breaks into a single space, and eliminates the gaps between tags such as '> <'. The right panel shows live stats: original byte size, minified size, bytes saved, and the percentage reduction. One click copies the minified output to your clipboard.
When to use it
It's handy before publishing static HTML pages, email templates, or small landing pages where every kilobyte counts. An indented, commented template often shrinks by 20-40%, meaning less bandwidth and a faster first paint. Large framework projects already minify during their build step, but for hand-written files or quick experiments this tool gives you an instant, byte-accurate result.
Frequently asked questions
Does it preserve whitespace inside <pre> or <textarea>?
No. The tool collapses all whitespace globally, so formatting inside <pre>, <textarea>, or whitespace-sensitive inline elements can break. Review the output if your markup contains those tags.
Does it also minify inline JavaScript or CSS?
No, it focuses on HTML structure only. Content inside <script> and <style> blocks may have its whitespace collapsed, but the JS/CSS syntax is not optimized. Use a dedicated minifier for those.
Is HTML Minifier free?
Yes. HTML Minifier and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. HTML Minifier works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.