HTML Formatter Online — Indent & Beautify HTML (Free) – DataMorph

Format, indent, and beautify HTML code online instantly. Paste minified or messy HTML and get clean, properly nested output. Free online HTML formatter — no upload, runs in your browser.

HTML Formatter Online — Indent & Beautify HTML

The HTML Formatter takes unindented, minified, or messy HTML and outputs clean, properly nested code with consistent indentation. Handles all standard HTML including inline elements, block elements, script/style tags, HTML5 custom elements, and deeply nested structures.

How to Format HTML Online

  1. Paste your HTML into the input field — minified, single-line, or poorly indented
  2. Choose indentation: 2 spaces (default), 4 spaces, or tab
  3. Click Format HTML to produce clean, properly nested output
  4. Copy the formatted result

When to Use an HTML Indentation Tool

  • Format minified HTML from build tools (Webpack, Vite) for inspection
  • Indent HTML copied from browser View Source
  • Beautify CMS-generated HTML (WordPress, Shopify templates)
  • Format HTML email templates from Mailchimp or similar tools
  • Improve HTML readability for code review

Frequently Asked Questions

How do I indent HTML code online?

Paste your HTML into this formatter, choose indentation size (2 or 4 spaces, or tab), and click Format HTML. Correct indentation is added to all nested elements instantly.

What is an HTML formatter?

An HTML formatter (HTML beautifier or indentation tool) takes unstructured or minified HTML and reformats it with consistent indentation and line breaks for readability.

Does formatting HTML change how it renders?

No. Whitespace between block elements has no effect on rendering. Formatting is purely for human readability.

Can I format HTML with embedded CSS and JavaScript?

Yes. This tool handles style and script tags and formats their content according to CSS and JavaScript rules respectively.