Will minifying HTML break my page?

For standard HTML, no. The minifier preserves all element structure and attributes. Conditional comments ( ) are intentionally preserved.

What does "Remove empty attributes" do?

It removes attribute declarations like class="" or id="" where the value is empty, since these have no effect on rendering.

Does it minify inline scripts and styles?

Yes, if you check the inline JS and inline CSS options. It applies basic minification — removing comments and collapsing whitespace — to content inside and tags.

How much can I expect to save?

Typical savings range from 10–40% depending on how much whitespace and how many comments the original file contains.

Is my HTML sent to a server?

No. All processing happens entirely in your browser using JavaScript. Nothing is transmitted to any server.

HTML Minifier

Name: HTML Minifier
Availability: InStock
Author: Nham Vu

Paste HTML, choose your minification options, and get a smaller output with the compression ratio shown.

Minify Options

HTML input

Options

Remove HTML comments () Collapse whitespace Remove empty attributes (class="") Minify inline JS (<script>) Minify inline CSS (<style>)

Minified HTML

Paste HTML on the left and click Minify HTML to start.

Summary

Paste HTML, choose your minification options, and get a smaller output with the compression ratio shown.

How it works

Paste your HTML code into the input field.
Select which minification options to apply.
Click Minify HTML to process the code.
Copy the minified output and see the bytes saved.

Use cases

Reduce HTML file size to speed up page load time.
Minify HTML templates before committing to a repository.
Strip development comments from production HTML.
Optimize email HTML for faster delivery.

Frequently Asked Questions

Related tools

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Last updated: 2026-06-03 · Reviewed by Nham Vu