Free Online HTML Formatter & Beautifier

Working with minified or poorly formatted HTML is frustrating and error-prone. When you receive HTML from APIs, view page source, or inherit code from other developers, it is often a single long line or inconsistently indented. Our free online HTML formatter instantly transforms messy HTML into clean, readable code with proper indentation and structure.

The formatter adds consistent 2-space indentation, places each element on its own line where appropriate, and maintains proper nesting hierarchy. This makes it easy to see the document structure, find specific elements, and identify nesting issues.

Formatted HTML is essential for debugging. When you can clearly see the tag hierarchy, finding unclosed tags, mismatched nesting, and structural issues becomes straightforward. Trying to debug minified HTML without formatting first is like trying to read a paragraph with no spaces.

For code review and collaboration, well-formatted HTML is a standard expectation. Clean formatting makes pull request diffs easier to read, reduces merge conflicts, and helps team members understand the code structure at a glance.

Common workflows include: formatting minified production HTML for debugging, cleaning up HTML generated by WYSIWYG editors or CMS platforms, standardizing indentation across a project, and making HTML email templates readable for editing.

The formatter preserves all HTML content and attributes — it only changes whitespace and indentation. Your page will render identically before and after formatting. All processing happens in your browser for complete privacy.