HTML Formatter
Beautify HTML with consistent indentation in your browser. Free HTML formatter, no signup, source stays on your device.
Processed locally in your browser.
How to use this html formatter
Paste HTML and click Format. Tags are indented by nesting level. Void tags such as br and img are not treated as wrappers.
This is a structural pretty-printer, not a full HTML5 parser. Odd or invalid markup may still indent, but browsers remain the authority for rendering.
Example
<div><p>Hi</p></div> becomes a nested, indented tree with one tag per line.
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Frequently asked questions
Does this minify HTML?
This page pretty-prints. For compression-like output, use the CSS or JavaScript minifiers on those languages.
Will it fix invalid HTML?
No. It re-indents tags. Use a linter or validator if you need spec compliance.
Is HTML uploaded?
Processed locally in your browser. We do not upload the text to compute a result.
Last reviewed 2026-08-19. Results stay on your device unless you copy them elsewhere.