HTML minifier

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About the HTML Minifier

The HTML Minifier removes comments, redundant whitespace and unnecessary attributes from your markup without changing how the page renders in browsers. Smaller HTML files mean faster first paint and lower transfer costs.

How to use it

Paste HTML into the editor or import a file.
The minifier runs immediately and shows the byte savings.
Copy the minified output or download it directly.

When to use it

Production builds for static sites and email templates.
Cleaning markup copied from WYSIWYG editors.
Reducing the size of inline SVG.

Notes

Minification is reversible: keep your source files versioned. Never minify code that still references comments at runtime.

Every unnecessary space, comment and line break in an HTML file is a few bytes the browser still has to download. Over a whole page those bytes add up, and shaving them is a cheap, safe way to make a page load faster. This minifier processes your HTML and returns a condensed version with redundant whitespace and comments removed, ready to deploy.

It is the last-pass step before shipping a static page — you keep the readable source during development and swap in the smaller minified file for serving.

How to Minify HTML

Paste your HTML source.
Read the minified output, condensed by removing unneeded whitespace and comments.
Copy the smaller version to your served file or deploy to a build step.

Practical Use Cases

Shrink a static HTML page before uploading it, trim a template or email file so it downloads faster, and reduce the bytes served for a simple site that is too big only because of formatting.

What Stays Safe

Minification here targets whitespace and comments that carry no meaning to the browser. The structure and behaviour of the page are preserved, so the minified version renders identically in normal use.

HTML minification — common questions

Does minification change how the page looks?

In normal use, no. It removes whitespace and comments the browser does not use, which preserves rendering while reducing the transferred bytes.

Is the saving worth it?

For small pages the saving is modest, but across many requests and on slower connections it adds up. It is a low-effort optimisation with no downside, so it is usually worth doing as part of a build.