This free online HTML formatter turns messy markup into clean, readable code — and can minify it back down for production.

All tools on this site run entirely in your browser locally. No data is uploaded to any server.

Features:

• Beautify: Re-indent HTML with consistent spacing and a clear tag hierarchy
• Minify: Strip whitespace and line breaks, compressing everything into a single line
• Code folding: Collapse and expand tag blocks to navigate large documents
• Local files: Open an HTML file from your computer, or drag and drop it into the editor

Common uses:

• Cleaning up unformatted markup for easier reading and debugging
• Compressing HTML to reduce page size
• Spotting broken tag nesting and other structural issues
• Tidying up HTML snippets copied from webpages or emails