HTML Minifier
WEBFree online HTML minifier that removes comments and whitespace to shrink pages, or beautifies them, right in your browser.
What is the HTML Minifier tool?
This HTML minifier compresses markup by dropping comments and collapsing the insignificant whitespace between tags — free, with no sign-up, and processed entirely in your browser. Paste a fragment or a whole page, click Minify, and you get a compact file ready to ship. Safety is the design goal: the contents of script, style, pre and textarea blocks are preserved verbatim, so inline JavaScript, embedded CSS and pre-formatted text come through exactly as written. Aggressive minifiers with the wrong options can break markup; this one deliberately stays on the safe side.
Lighter HTML means fewer bytes on every page load — useful when you are trimming a landing page, compressing template output, or squeezing an HTML email under a size limit. The same tool goes the other way too: choose Beautify to expand minified markup back into cleanly indented structure — the same engine behind Carbide's HTML formatter page — so you can inspect a compressed page, edit it, and compress it again.
Nothing you paste is uploaded: minifying and beautifying run client-side on your device, which makes it safe for client work and unreleased pages, and the tool keeps working offline once loaded. Copy the output with one click or download it as an .html file, on desktop or on your phone.
How to use the HTML Minifier
- Paste or type your HTML into the editor.
- Click Minify to remove comments and collapse whitespace between tags.
- Or click Beautify to expand minified markup back into readable form.
- Check the result — script, style, pre and textarea contents are untouched.
- Copy the output or download it as an .html file.
Frequently asked questions
How much does minifying HTML save?
It depends on the markup: template-generated pages with heavy indentation and comments shrink noticeably, while already-tight code shrinks less. There is no honest fixed percentage — paste your page and compare the output length. Minification also stacks with gzip or brotli compression on your server.
Will minifying break my inline scripts or styles?
No. The contents of script, style, pre and textarea blocks are preserved exactly as written, so embedded JavaScript, CSS and pre-formatted text keep working. That safe-by-default behavior is the point — aggressive whitespace options in some minifiers can change how a page renders.
What's the difference between minifying and beautifying HTML?
Opposite directions of the same transformation: minify strips comments and whitespace for the smallest shipped file; beautify adds indentation and line breaks for reading and editing. This tool does both, so a minified page can always be expanded again.
Can whitespace removal change how my page looks?
In rare cases whitespace between inline elements is significant (for example, the gap between two inline-block elements). This minifier collapses whitespace conservatively rather than deleting it entirely, which avoids the classic layout-shift bugs — but as with any build step, glance over the result before shipping.
Does my HTML get uploaded anywhere?
No. Minifying and beautifying happen entirely in your browser on your device — nothing is sent to a server, and the tool works offline once the page has loaded.
Is the HTML minifier free, and is there a size limit?
Completely free — no sign-up, no watermark and no cap on file size or usage. Processing is on-device, so even large pages minify instantly.