HTML Tools

HTML Formatter

Turn messy HTML into clean, readable markup with proper indentation.

Best for: Reviewing pasted CMS output, Preparing template diffs

Quick answer

Paste HTML in and get neatly indented, human-readable markup without changing the document structure.

Hub

HTML tools hub

Browse formatters, extractors and cleanup tools for markup-focused work.

Overview

This HTML formatter reorganizes tags, nested blocks, and spacing so your markup is easier to inspect and edit. It keeps the original element order and content while making the hierarchy obvious. Use it when HTML has been pasted from a CMS, copied from a build output, or stitched together from several sources. Because the result is browser-side, it’s practical for reviewing snippets, comparing template versions, or preparing code for hand edits.

Use cases

  • Reviewing pasted CMS outputMake editor-generated markup readable before you inspect missing wrappers, broken nesting, or duplicated elements.
  • Preparing template diffsFormat two HTML versions before comparing them so small structural changes are easier to spot.
  • Cleaning email markupReformat long email fragments with nested tables and inline elements for safer manual edits.
  • Documenting component snippetsPresent formatted HTML in internal docs, reviews, or handoff notes so teammates can follow the structure.

How it works

  1. 1

    Paste your HTML into the input field.

  2. 2

    Adjust indentation or comment-handling options if they’re available.

  3. 3

    Run the formatter to produce cleanly structured HTML.

  4. 4

    Copy the result into your editor, notes, or project files.

Examples

Compact product card

Input: <article><h3>Pro Plan</h3><p>Everything included</p><a href="/pricing">View plans</a></article>

Output: <article> <h3>Pro Plan</h3> <p>Everything included</p> <a href="/pricing">View plans</a> </article>

Expands a single-line component into a readable block.

Nested layout fragment

Input: <div class="wrap"><header><nav><a href="/">Home</a><a href="/docs">Docs</a></nav></header><main><section><img src="hero.jpg" alt="Hero"></section></main></div>

Output: <div class="wrap"> <header> <nav> <a href="/">Home</a> <a href="/docs">Docs</a> </nav> </header> <main> <section> <img src="hero.jpg" alt="Hero"> </section> </main> </div>

Breaks a dense layout into clear semantic sections.

Email table snippet

Input: <table><tr><td><strong>Order #4821</strong></td><td align="right">Shipped</td></tr><tr><td colspan="2"><a href="https://example.com">Track package</a></td></tr></table>

Output: <table> <tr> <td><strong>Order #4821</strong></td> <td align="right">Shipped</td> </tr> <tr> <td colspan="2"> <a href="https://example.com">Track package</a> </td> </tr> </table>

Shows how table-heavy HTML becomes easier to inspect and edit.

FAQ

Will formatting change attribute order or text content?

It should not change the meaning of your HTML. The purpose is to improve indentation and layout, not rewrite content.

Why does some inline markup stay on one line?

Short inline structures may remain compact if the formatter preserves them that way. That is usually normal and helps avoid unnecessary line noise.

What happens to malformed HTML?

Severely broken markup may still format, but the result can reflect the parser’s best interpretation rather than your original intent. Fix tag errors first when possible.

Can I remove comments while formatting?

If comment removal is enabled, comments may be stripped. Otherwise, they should stay in place.

Why does the output differ from my editor’s prettify feature?

Different formatters use different rules for wrapping, whitespace, and void elements. Small differences in line breaks are expected.