Markdown & HTML Tools

HTML Beautifier

Paste minified or unformatted HTML and get properly indented, readable markup. Configurable indentation (2 or 4 spaces, or tabs), one-attribute-per-line mode, and immediate copy.

Indents nested tags cleanly Browser-only Instant copy
HTML (minified or messy)

All conversion happens in your browser; your text is never sent to a server

Features

  • Indents nested HTML tags consistently
  • 2-space, 4-space, or tab indentation options
  • Optional one-attribute-per-line for long opening tags
  • Preserves <pre> and <script> content
  • Shows formatted character count
  • Browser-only

How to use it

  1. Paste minified or messy HTML into the input.
  2. Choose indentation style.
  3. Formatted HTML appears instantly.
  4. Copy the result.

Use cases

  • Making minified HTML readable for debugging
  • Reviewing CMS-generated HTML output
  • Preparing HTML for code review
  • Reformatting pasted HTML snippets for documentation

Limitations

  • Inline elements (span, a, strong) are kept inline. They are not given their own lines to avoid unwanted whitespace in rendered output.
See also

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Questions & answers

Frequently asked

Does it validate the HTML?

No. It formats whitespace and indentation without parsing the document model. Invalid tags are reformatted as-is.