HTML Formatter Online

Beautify messy or minified HTML with readable two-space indentation, then copy the result.

Paste your HTML code here

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Formatted Output

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HTML Formatter Online

This HTML formatter online turns compact or inconsistently indented markup into a more readable structure. It applies two-space indentation in your browser, making nested elements easier to scan during debugging, documentation, and code review.

How to Format HTML

  1. Paste HTML into the input editor.
  2. Select Format HTML to create an indented version.
  3. Review the read-only formatted output.
  4. Select Copy to place the result on your clipboard.

Use Load Sample to try the formatter with a complete document or Clear to reset both editors.

What HTML Formatting Changes

Formatting changes whitespace and indentation so that parent and child elements are visually distinct:

<main>
  <h1>Example</h1>
  <p>Readable markup is easier to review.</p>
</main>

Readable formatting can help you spot nesting mistakes and understand a document more quickly. The formatter is intended to reorganize source whitespace, but the result should still be reviewed in a browser.

What This Formatter Does Not Do

The formatter does not validate HTML against the HTML specification, repair every malformed tag, minify code, or format continuously as you type. Selecting Format HTML runs the formatter on the current editor content.

Always review the result when whitespace is significant, particularly inside <pre>, <textarea>, inline text, or template syntax. A formatter is not a substitute for testing the rendered page.

Common Uses

  • Expand minified HTML before debugging it.
  • Prepare a readable example for documentation or a code review.
  • Inspect the nesting of an email template or server-rendered fragment.
  • Normalize markup before comparing two versions.
  • Make copied page-source sections easier to navigate.

HTML Formatter vs. HTML Viewer

A formatter reorganizes source code for readability. A viewer renders that source as a web page. After beautifying markup here, open it in the HTML viewer to confirm how the browser interprets it.

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