HTML Formatter

It uses the browser's own lenient HTML parser, which tolerates unclosed tags and other real-world messiness the way a browser rendering the page would, so the output is always valid, well-formed HTML. It doesn't preserve intentionally invalid markup as-is.

No, only whitespace and indentation change. Tag structure, attributes, and text content stay the same.

Short inline elements stay on one line with their text rather than each getting their own line, which keeps paragraphs of text with inline formatting readable instead of fragmenting every word onto its own line.