HTML Minifier
Strip whitespace and comments from HTML.
- Reading time:
- 2 min
- Last updated:
- Price:
- Free, no signup
Type or paste text to see the result.
What the HTML Minifier does
Paste readable, indented HTML and get back the same page squeezed into its smallest form: whitespace collapsed, comments stripped, optional tags removed. A 40 KB page template often comes back under 30 KB with zero change to how it renders.
The minified output is still valid HTML — browsers parse it identically, they just download less.
Why the HTML Minifier is useful
Every kilobyte of HTML is downloaded on every page view. Templates full of indentation and comments are great for developers and pure overhead for visitors. Minifying is one of the cheapest speed wins available.
Hand-written HTML also accumulates leftover comments and dead spacing over months of edits; a minify pass cleans that out.
Also known as: html minifier, minify html, compress html, free html minifier, online html minifier, html minifier online free, html minifier tool.
How to use the HTML Minifier
- 1
Paste your HTML
Drop in a full page or a fragment.
- 2
Minify
Comments and extra spacing vanish; the compressed result appears instantly.
- 3
Copy the output
Use it in production; keep your readable source for editing.
Key features
- Collapses whitespace between tags
- Strips HTML comments
- Preserves content inside pre, textarea and script
- Shows original vs. minified size
Benefits
- Smaller pages, faster loads
- Strip developer comments from production HTML
- Prepare templates for inlining into emails
Real-life use cases
Speeding up a landing page
A marketer minifies the hand-coded landing page and shaves 25% off the HTML weight before a campaign launch.
Building an email template
A developer minifies the newsletter HTML so Gmail doesn't clip the message.
Cleaning generated markup
A shop owner deletes the comments a page builder left in the exported HTML.
Tips for the best results
- Hold on to your readable source file — once HTML is compressed, editing it by hand is miserable.
- Check that your server isn't already minifying; doing it twice gains nothing.
- Inline CSS and JS inside the HTML are left alone; minify those separately.
Conclusion
Paste the readable version, take the small version, and ship less markup.
Frequently asked questions
Does minifying change how the page looks?
- No. Whitespace between tags rarely affects rendering, and content in pre/textarea elements is preserved.
How much smaller does it get?
- Typically 10–30%, depending on how heavily indented and commented the source is.
Does it touch inline scripts?
- Script contents pass through untouched, so inline JavaScript keeps working.
Should I minify by hand or at build time?
- Build-time minification is better for ongoing projects; this tool is ideal for one-off pages and email templates.
Can I reverse it?
- Not exactly — comments are gone for good. Use the HTML Beautifier to restore readability to the structure.
Does the page send my HTML anywhere?
- No — the compression happens entirely inside your browser tab.
Related tools you may need
- SVG Optimizer — Strip comments, metadata and whitespace from SVG.
- JavaScript Minifier — Basic JavaScript minifier — strips comments and extra whitespace.
- HTML Beautifier — Pretty-print minified HTML with 2-space indentation.
- CSS Minifier — Strip whitespace and comments from CSS in one click.
- Markdown Previewer — Convert Markdown to HTML for a quick preview.
- HTML Table Generator — Turn CSV-style rows into a ready-to-paste HTML table.
- Border Radius Generator — Generate CSS border-radius shortcuts.
- CSV Validator — Check that every row has the same number of columns.
Keep exploring
Browse the full tools directory, filter by category, or read guides on the Text Tools Hub blog.