Does it render or execute my HTML?

No. The markup is treated purely as text, so it is safe to paste a snippet even if you do not trust its source.

Beautify keeps HTML comments; minify removes them.

Will it fix invalid HTML?

No. It re-indents the markup you give it but does not close missing tags or correct nesting errors.

How much does minifying actually save?

Minifying removes only whitespace, so the raw saving is modest. The bigger win comes when your server also gzip- or brotli-compresses the response.

Is my markup uploaded?

No. Formatting happens entirely in your browser.

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HTML Formatter & Minifier

Beautify or minify HTML — useful for emails, snippets, and copy-pasted markup.

Runs in your browserNo account requiredNo uploadFree

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About HTML Formatter & Minifier

HTML Formatter & Minifier switches HTML markup between a clean, indented form and a compact, minified one. Beautifying is for reading and editing — markup pasted from a minified page, an email template, or a CMS export becomes a properly indented tree you can work with. Minifying is for shipping — it strips the whitespace browsers ignore so the file downloads faster.

Paste your markup and pick a mode. Beautify turns a run-on line such as <ul><li>One</li><li>Two</li></ul> into nested, indented lines and also reformats CSS and JS inside <style> and <script> blocks. Minify does the reverse — collapsing indentation, removing the gaps between tags, and stripping HTML comments.

The tool reformats markup as text — it does not render, sanitize, or execute it, and it does not repair invalid HTML beyond re-indenting what is there. A partial snippet, rather than a full document, is formatted as given.

All processing is local to your browser. Markup containing draft copy, internal URLs, or template logic is never uploaded or stored.

Frequently asked questions

Yes. Beautify reformats CSS inside <style> and JS inside <script> with the same indentation. If you need to keep those blocks byte-identical, format them separately and paste them back.