HTML Formatter

Beautify and indent messy HTML, or minify it for smaller markup.

Formats and indents markup so it's easier to read, or strips whitespace to shrink it. Runs entirely in your browser.

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4.9 (0)

How to use HTML Formatter

Three quick steps — no sign-up needed

  1. Step 1

    Paste your HTML

    Drop in markup that is minified or inconsistently indented.

  2. Step 2

    Choose indent style

    Select 2 spaces, 4 spaces, or tabs for beautified output.

  3. Step 3

    Format or minify

    Beautify for reading and debugging, or minify when you need compact markup.

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About HTML Formatter

HTML Formatter beautifies messy or minified markup with consistent indentation, and can minify HTML when you need a smaller payload. Developers searching "HTML beautifier", "prettify HTML", or "minify HTML online" use it to read templates and emails more easily.

Paste HTML, pick indent size (2 spaces, 4 spaces, or tab), and format. Beautify helps debugging; minify strips optional whitespace for transfer size - always validate pages after minifying templates.

Broken HTML may not round-trip perfectly. Prefer fixing structure in source templates over relying on a formatter to invent correct DOM.

A formatting aid - not a full HTML validator or accessibility auditor.

Benefits of HTML Formatter

Beautify and minify Readable or compact output as needed.
Indent control 2 spaces, 4 spaces, or tabs.
Easier debugging See nested tags clearly.
Quick template cleanup No IDE required for a one-off file.

Frequently asked questions

Will formatting fix invalid HTML?

Not reliably - it mainly adjusts whitespace and structure presentation.

Should production HTML be beautified?

Usually ship minified or build-pipeline output; keep beautified sources in git.

Does it change my classes or IDs?

It should not rewrite semantic attributes while indenting.

Can it format HTML emails?

Yes for readability, but email clients remain strict - test renders separately.

Is minify safe for all templates?

Test - some fragile templates depend on whitespace in text nodes.