What is an HTML beautifier?

An HTML beautifier reformats HTML code to add consistent indentation and line breaks, making it easier for humans to read and edit.

Does beautifying HTML fix errors?

No. Beautifying only improves formatting. Use the HTML Validator to check for and fix syntax errors.

Can I beautify HTML that contains embedded CSS and JavaScript?

Yes. The tool handles HTML documents with and blocks, formatting the HTML structure around them.

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HTML Beautifier Online

Turn chaotic, unindented HTML into clean, readable code with FixTools' HTML Beautifier. Whether your code came from a drag-and-drop builder, a minifier, or a rushed edit session, the beautifier restores proper structure in seconds.

⚡ Use Tool Now How it works

Cost: Free forever
Sign-up: Not required
Processing: In your browser
Privacy: Files stay local

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Beautifies nested HTML structures

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Handles inline styles and scripts

✨

Configurable indentation width

HTML Tool

HTML Formatter

All processing happens in your browser — your files are never uploaded to any server.

🚀Open HTML Formatter

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How to use this tool

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Paste your HTML and click Beautify. The tool reformats your code with consistent indentation and line breaks for maximum readability.

How It Works

Step-by-step guide to html beautifier online:

1
Open the HTML Beautifier
Navigate to the HTML Formatter tool on FixTools.
2
Paste your HTML
Paste any amount of HTML — from a single element to a complete document — into the input panel.
3
Beautify
Click the Beautify button to instantly produce indented, readable HTML in the output panel.
4
Copy or download
Copy the beautified HTML to clipboard or use the output directly in your project.

Real-world examples

Common situations where this approach makes a real difference:

Email template received from a designer

Drag-and-drop email builders export compressed, barely readable HTML. Beautifying it first lets you audit inline styles and fix rendering issues across clients.

Minified HTML from a build pipeline

After running a build that minifies HTML, beautify the output to verify the minifier did not accidentally remove required attributes or collapse adjacent elements incorrectly.

When to use this guide

Use this when you receive HTML that has inconsistent or missing indentation and you need it readable before editing, reviewing, or sharing it.

Pro tips

Get better results with these expert suggestions:

Beautify before reviewing a pull request

If an HTML diff is hard to read due to formatting changes, beautify both versions locally to produce a clean structural comparison.

Check inline scripts separately

The HTML beautifier formats the HTML structure. If you have embedded JavaScript in <script> tags, also run it through a JS formatter for full readability.

Set a project-wide indent standard

Pick either 2 or 4 spaces and stick to it across your project. Use the beautifier to normalise all files before starting a refactor.