HTML Minifier Online

Last reviewed: 2026-09-03

Strip whitespace and comments from a HTML block to shrink it before you paste it into a page, an email template, or a build step.

What it does

Strips whitespace and comments from a HTML block.
Renders the minified output to the right as you paste or upload the input.
Preserves the original line layout in the source pane so you can diff the before and after.

Minification runs locally in your browser; nothing is uploaded. The HTML you paste stays on your device from start to finish.

To expand an already-minified block back into readable, indented HTML, use the beautifier linked in the related-tools section below.

Last updated: Sep 3, 2026

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What does HTML Minifier Online do?

Strip whitespace and comments from a html block.

When should I reach for html minifier online?

Original line layout is preserved in the source pane for diffing.

What complementary tools work well alongside html minifier online?

For unminification of an already-minified block, see the related-tools section.