HTML CSS JS Compiler

HTML Formatter

Format HTML online with two-space indentation. Paste markup, inspect readable output and copy it without uploading your code.

Use this HTML Formatter when your markup is hard to scan. It focuses on indentation and tag hierarchy so you can edit structure safely before previewing in the compiler.

Input
Output

When to use HTML Formatter

  • Cleaning pasted snippets from emails or docs
  • Preparing HTML before a code review
  • Organizing nested tags without changing meaning

Example

Input

<div><h1>Hello</h1><p>World</p></div>

Output

<div>
  <h1>Hello</h1>
  <p>World</p>
</div>

How to use

  1. Paste HTML. Drop unformatted or unevenly indented HTML into the input panel.
  2. Format. Click Run to apply consistent indentation across nested tags.
  3. Copy result. Copy the formatted HTML or move it into the HTML CSS JS compiler.

Processing and limitations

Uses Prettier with two-space indentation. Formatting does not prove HTML is accessible or standards-valid. Keep a source copy and check whitespace-sensitive layouts in preview.

Reference

Benefits

  • Free to use—no account required
  • Runs in your browser
  • Instant results with no software install
  • Basic processing does not upload your content to a server
  • Formatting does not execute scripts. Use the compiler preview when you need a live render.

Not the same as

Need a smaller file? Use the HTML Minifier. Need a live page with CSS/JS? Open the homepage compiler.

Related tools

HTML CSS JS Compiler Tools HTML MinifierHTML Viewer