How do I minify HTML?

Paste HTML above and copy the compact output. The tool strips comments and collapses safe whitespace.

Does HTML minification improve page speed?

It can reduce transfer size. Pair it with compression (gzip/Brotli), image optimisation, and caching for larger gains.

Can I safely minify HTML?

For typical static markup, yes. Always smoke-test pages that rely on significant whitespace inside pre or code blocks.

What does an HTML minifier remove?

This minifier removes HTML comments and unnecessary whitespace between tags. It does not rewrite attributes or scripts.

How much can HTML minification reduce file size?

Savings vary. Comment-heavy, heavily indented files often shrink noticeably; already compact files save less.

What is HTML Minifier?

A free online tool that compresses HTML formatting for developers and students.

How does the HTML Minifier work?

It processes your markup in the browser, strips comments, collapses safe whitespace, and reports bytes saved.

How do I use the HTML Minifier?

Paste HTML, review the size stats, and copy the minified output.

Is this HTML Minifier free to use?

Yes. It is free with no sign-up.

Can I use the HTML Minifier on mobile?

Yes. Mobile browsers are supported.

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HTML Minifier

Minify HTML by removing comments and unnecessary whitespace. See bytes saved instantly while keeping the same page structure.

Runs in your browser — your data stays on your device

Free tool

Pretty HTML teaches; compact HTML ships. This free HTML minifier removes comments and collapses safe whitespace so frontend developers and students can measure how much formatting costs before they push static pages or email templates. Everything runs locally—no install, no upload.

How to use the HTML Minifier

1
Paste pretty-printed or mixed HTML.
2
Review original bytes, minified bytes, and bytes saved.
3
Copy the compact output for production or comparison.

Why HTML minification still matters

Whitespace and comments rarely change behaviour, but they inflate first-byte payloads on shared hosting and student demos. Measuring savings here teaches a performance habit: minify what you ship, keep a readable source in version control.

HTML minifier with examples

Load the spaced example, note the byte counts, then copy the minified string. Comments disappear and tags sit tight—ideal for comparing before-and-after sizes in coursework.

Guides and next steps

Privacy note

HTML minification runs entirely in your browser. We do not upload your markup.

Frequently asked questions

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