UtilityBase logoUtilityBase

Developer Tools

HTML Formatter

Beautify or minify HTML in your browser, with byte savings shown on minify.

Updated July 10, 2026

How to use the html formatter

  1. 1Paste your HTML into the input.
  2. 2Choose Beautify to format or Minify to shrink.
  3. 3Read the result and the byte savings.
  4. 4Copy the formatted code.

Common uses

  • Making minified HTML readable again
  • Tidying inconsistent markup indentation
  • Minifying a page to cut load time
  • Formatting a snippet before sharing it

Frequently asked questions

What does beautifying HTML do?

It reformats the markup with consistent indentation and line breaks so nested elements are easy to read, without changing what the page renders. It's the fix for HTML that arrived minified or with inconsistent spacing.

Does it minify too?

Yes. Switch to minify to strip comments and collapse whitespace, shrinking the file for faster loading. The tool protects the contents of pre, textarea, script, and style so minifying doesn't break them, and shows the bytes saved.

Can I format CSS and JavaScript here as well?

Yes. Switch the language to CSS or JavaScript to beautify or minify those too — JavaScript uses Terser and CSS uses clean-css, the same engines build tools rely on.

About this tool

The HTML formatter cleans up messy or minified HTML with consistent indentation and line breaks, making it readable again, or minifies it to shrink the file for faster loading. It also handles CSS and JavaScript in the same tool, and switches between beautify and minify with one click. On minify it shows exactly how many bytes you saved. Beautifying uses js-beautify; nothing is uploaded, so it's safe for private markup. Everything runs in your browser.

Like most tools on UtilityBase, the html formatter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.

Was this tool helpful?

Related tools

CSS Minifier

Minify CSS to shrink your stylesheet, or beautify it — with byte savings shown.

Developer Tools

JavaScript Beautifier

Beautify messy or minified JavaScript, or minify it with Terser — byte savings shown.

Developer Tools

JSON Formatter

Format, validate, and minify JSON with precise error locations.

Developer Tools

SQL Formatter

Format messy SQL into readable, consistently indented queries — locally.

Developer Tools

What Is My IP

Your public IP, and exactly what it reveals — location, ISP, timezone.

Developer Tools

Regex Tester

Test regular expressions live with match highlighting, groups, and a cheat sheet.

Developer Tools