Does minifying HTML affect how the page renders?

No, only unnecessary whitespace and comments are removed — the actual rendered output is unaffected.

Are HTML comments always removed, even ones I want to keep?

Standard minification strips all comments — if you need to preserve specific comments (like licensing notices), keep them out of the content you minify or reinsert them afterward.

How much does minifying typically reduce file size?

It varies based on how much whitespace and commenting the original had, but a real reduction is typical for hand-formatted, readable HTML.

Does HTML Minifier upload my files to a server?

No. HTML Minifier runs entirely in your browser using on-device processing, your files never leave your device.

HTML Minifier

Minify HTML by stripping comments and unnecessary whitespace.

Runs in your browser

HTML input

About this tool

Production HTML should be minified — stripped of comments and unnecessary whitespace — to reduce page weight, while HTML you're actively developing needs to stay readable, and going back and forth manually is tedious. This tool minifies HTML by stripping comments and unnecessary whitespace, giving you a smaller production-ready file without manually deleting whitespace and comments yourself.

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