Content to HTML Ratio Checker
A text to HTML ratio checker is a tool that compares visible text with total page code. It removes script,…
Free HTML minifier
Remove comments and whitespace from HTML and see the bytes saved, all inside your browser.
Result
0Original bytes
0Minified bytes
0%Saved
The free html minifier runs in your browser, needs no sign-up and never sends what you type anywhere.
Quick answer
This HTML minifier strips comments, collapses runs of spaces and line breaks, and removes whitespace between tags while leaving pre, textarea, script and style blocks untouched. Rule of thumb: expect 5 to 20 percent savings on typical pages, and always enable gzip or Brotli on the server because compression saves far more.
What is a HTML minifier?
An HTML minifier is a tool that rewrites markup into fewer bytes without changing what the browser renders. It protects whitespace sensitive blocks, deletes comments, and replaces repeated whitespace with a single space or nothing between tags.
How do you use the HTML Minifier?
- Paste the HTML of a page or template into the input box.
- Choose the options: remove comments, remove whitespace between tags and minify inline CSS.
- Compare the original and minified size and the percent saved.
- Copy the result or download it as an .html file.
- Check the page in a browser, especially inline elements such as links and buttons placed side by side.
Does minifying HTML help SEO?
Minifying HTML does not directly change rankings, but it reduces page weight, which can slightly improve load time. Google ranks on content relevance first and page experience is only one of many signals. web.dev covers minification and compression as transfer size wins.
Is it safe to remove whitespace between tags?
Mostly yes, but whitespace between inline elements can be visible, for example a space between two links or inline buttons. If items touch after minifying, turn off the option to remove whitespace between tags, and the tool will collapse whitespace to one space instead.
Will minifying HTML break my scripts?
No. This tool does not change anything inside script, pre or textarea blocks, so JavaScript, preformatted text and form defaults stay exactly as written. Inline CSS inside style blocks is only minified when you tick that option.
Quick reference
| Removed | Typical saving | Risk |
|---|---|---|
| HTML comments | 1 to 5 percent | None, except conditional comments (kept) |
| Indentation and line breaks | 5 to 15 percent | None outside pre and textarea |
| Whitespace between tags | 1 to 3 percent | Can join inline elements |
| Inline CSS whitespace | Varies | Low |
Worked example
Example
Example: the sample page in the tool is 412 bytes with a comment, indentation and line breaks. With all options on, it shrinks to about 311 bytes, a saving of roughly 24 percent, while the pre block keeps its line breaks and the inline script stays exactly as written.
Frequently asked questions
What is the difference between minifying and compressing HTML?
Minifying removes characters from the file itself, while compression such as gzip or Brotli encodes the file for transfer and the browser decodes it. They work together: minify at build time, compress on the server, and both savings add up.
Are conditional comments kept?
Yes. Comments that start with <!--[if are old Internet Explorer conditional comments and are kept, because removing them could change behavior on legacy pages. All other HTML comments are removed when the option is on.
Should I minify HTML on WordPress?
Many caching plugins can minify HTML on the fly, which is easier than editing templates. Use this tool to check a template or a static page, and test after enabling any automatic minification because some themes rely on whitespace between inline elements.
Does this tool remove optional tags or quotes?
No. It keeps every tag and attribute quote, so the output stays valid and readable by any parser. Removing optional closing tags saves very little and makes the markup harder to maintain, so it is left out on purpose.
Is my HTML uploaded anywhere?
No. Minification runs in your browser with plain JavaScript, and nothing is sent to a server or stored. You can safely paste templates that contain private URLs or unpublished content.
How much faster will my page load?
Usually only slightly, because HTML is often a small part of total page weight compared with images and scripts. On a 60 KB HTML document a 15 percent saving is about 9 KB before compression. Check Core Web Vitals to find bigger wins.
Sources
Facts checked against these official pages. Read how I check facts in my editorial policy.
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