HTML Minifier, Beautifier & Unminify Tool Online

Minify, compress, beautify or unminify HTML instantly. Process code or fetch from any URL. 100% private — runs in your browser.

Enter a public HTTP/HTTPS URL. We use a secure proxy and never store the source.

Input HTML
Output HTML

Free Online HTML Minifier, Beautifier and Formatter

Messy markup slows pages down and makes debugging painful. This free online HTML minifier and beautifier handles both problems in one place. Paste your code, upload a file, or enter a public URL, then choose whether to minify HTML, beautify it, or unminify it back into readable code. Everything runs in your browser, so your source stays private.

Your HTMLMinify · BeautifyUnminify · FormatCompressed HTMLsmaller, faster pagesClean, indented HTMLeasy to read and edit

What Can This HTML Code Tool Do?

HTML Minifier

Strip whitespace, line breaks and comments to compress HTML without changing what the browser renders. A smaller file means less data to download, which helps your pages load faster on mobile connections.

  • Minify HTML code online in one click
  • Fetch & Minify from any public URL
  • Works as an HTML optimizer before deployment

HTML Beautifier

Turn a single unreadable line into tidy, indented markup. The beautifier is built for code reviews, theme edits and learning how a page is structured, and you can pick your preferred indent size.

  • Beautify HTML code online with 2-space or custom indent
  • Fetch & Beautify any public page
  • Unminify HTML so you can read third-party code

HTML Formatter

Keep a consistent style across a project. Use the formatter to pretty print snippets before committing them, and use the side-by-side input and output panes to compare the original and the result at a glance.

  • Format HTML online with consistent nesting
  • Upload, copy, clear and download results
  • No sign-up, no install, no limits on use

How to Use the Tool

  1. Add your code. Paste it into the input panel, upload an .html file, or enter a public URL and use Fetch & Minify or Fetch & Beautify.
  2. Pick an action. Choose Minify, Beautify or Unminify. For readable output, set the indent size first.
  3. Check the result. Review the output panel next to your original. Because minifying only removes characters that do not affect rendering, the page should behave the same, which is a simple semantic comparison you can confirm in the browser.
  4. Copy or download. Copy the output or save it as a file and use it in your theme, template or build.

Why Minify HTML?

Every extra space and comment in your markup is a byte the visitor has to download. On a single page that is small, but across a whole site, and on slow connections, it adds up. Compressing HTML is one of the easiest ways to trim page weight, and it pairs well with image and server improvements. Google’s web.dev performance guide explains how page weight affects loading, and you can measure your results with PageSpeed Insights.

For WordPress sites, minifying output works best alongside other basics. Tune your server using our Nginx performance tips, and start from one of the fastest WordPress themes so there is less markup to clean up in the first place.

Why Beautify and Unminify HTML?

Minified code is great for visitors and terrible for people. When you inspect a live page, copy a snippet from a third-party widget, or inherit a project, an unminify step makes the structure visible again. Indented markup makes unclosed tags, wrong nesting and duplicate IDs much easier to spot. After cleaning up, validate the result with the W3C Markup Validator and check element rules in the MDN HTML reference.

Safe Minification Tips

  • Keep a readable copy. Store the beautified source in version control and only deploy the minified file.
  • Be careful with whitespace-sensitive tags. Content inside <pre> and <textarea> should keep its spacing.
  • Test conditional comments and inline scripts. Review the output before publishing, especially for older templates.
  • Pair with CSS and JS minification. HTML is only part of the payload. See how to add custom CSS in WordPress to keep styles organized.

Who Is This Tool For?

Front-end developers use it to tidy code before a pull request, and WordPress and WooCommerce builders use it to clean snippets pasted from page builders. Students use it to learn markup structure, and site owners use it to shrink an exported page. If you are building your skills, our front end developer roadmap and the list of the best CSS frameworks are good next steps.

Developers who automate this step in a build pipeline can look at the open source html-minifier-terser project.

Privacy and Security

Pasted code is processed locally in your browser. When you use the URL option, the page is requested through a secure proxy and the source is not stored. Only fetch public pages you have permission to copy.

Frequently Asked Questions

Is this HTML minifier really free?

Yes. You can minify, beautify and format HTML as often as you like with no account.

Will minifying break my page?

Normally not, because only characters that do not affect rendering are removed. Still, preview your page after minifying, and keep your original file.

What is the difference between beautify and unminify?

Both make code readable. Beautify re-indents any HTML to your chosen style, while unminify is aimed at code that was compressed into one line.

Can I process a live web page?

Yes. Enter a public HTTP or HTTPS address and use Fetch & Minify or Fetch & Beautify.

Does it work on mobile?

Yes. The tool runs in any modern browser on desktop, tablet or phone.