Developer Tools
HTML Minifier
Minify HTML by removing whitespace, comments, and optional tags to reduce file size in a browser-first workflow.
Free in browser No sign-up required Immediate results
How it works
Run this tool in three short steps.
01
Paste HTML
Paste code or upload .html.
02
Auto-minify
Whitespace and comments removed.
03
Copy result
Copy or download.
Questions
What people ask before they use this tool.
What does HTML minification do?
Removes unnecessary whitespace, comments, and optional tags to reduce file size without changing functionality.
Does it break my HTML?
No. Only safe removals: extra whitespace, comments, optional closing tags. Structure and functionality are preserved.
How much size reduction?
Typically 10-30% depending on formatting and comments in the original.
Is my code uploaded?
No. All processing in your browser.
Does it remove comments?
Yes. HTML comments (<!-- -->) are removed. Conditional comments for IE are preserved.
Does it handle inline CSS and JS?
Inline styles and scripts are preserved but whitespace within them is also compressed.
Can I upload a file?
Yes. Upload .html files directly.
Can I download the result?
Yes. Download as .html file.
Does it work with templates?
Yes. Template syntax (JSX, Handlebars, etc.) is treated as text and preserved.
Is there a size limit?
It works well for typical pages, templates, and exported HTML files in the browser. Very large files depend on your device memory and browser performance.
Does it work on mobile?
Yes.
Can I beautify instead?
This tool minifies. For formatting, paste into a code editor with auto-format.
Does it affect SEO?
No. Minification does not change content visible to search engines.
Can I start using it right away?
Yes. Paste markup or upload an HTML file and the minified result appears directly on the page. See all <a href="/developer-tools">Developer Tools</a>. Also try <a href="/json-formatter">JSON Formatter</a>.
What other developer tools does Coda One offer?
CSS Minifier, JS Minifier, JSON Formatter, and <a href="/text-diff-checker">Diff Checker</a>, plus 20+ more.
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Minify HTML by removing whitespace, comments, and optional tags. Paste code or upload a file, review the compressed output, and copy or download it without leaving the page.