HTML Prettifier
Format and indent messy HTML into clean, readable markup, live as you type.
100% private, runs in your browser
Formatted
Formatted with Prettier, live as you type, entirely in your browser. Nothing you type is sent anywhere.
What is HTML Prettifier?
Paste minified or messily-indented HTML and get it reformatted into clean, consistently indented markup, powered by Prettier — the same formatter many code editors use. Great for making sense of a minified page's source or cleaning up hand-written HTML before committing it.
FAQ
Prettier's HTML parser, running entirely in your browser via its standalone build — the same tool many teams use to auto-format code in their editor or CI pipeline.
No, it formats syntax it can parse but doesn't check for HTML5 spec compliance. If it can't parse the input at all, it will say so.