HTML Beautifier
Beautify or minify HTML markup.
What is the HTML Beautifier?
An HTML beautifier re-indents markup so nesting is visible and attributes are readable, which makes hand-editing or reviewing a page practical. Minifying does the reverse: it strips comments and non-significant whitespace to reduce the transferred size of a document.
Frequently asked questions
Can minifying HTML break my page?
It can if whitespace is meaningful, most often inside <pre> blocks or between inline-block elements where a space affects layout. Check rendering after minifying, and keep whitespace-sensitive regions intact.
What formatter does this use?
Beautifying is powered by Prettier compiled to run in the browser, so the output matches what Prettier would produce in your editor or CI — the same rules, no server involved.
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HTML Beautifier is one of 10 tools in Text & Code on Toolkit Hub, a free collection of browser-based utilities. It requires no account and no installation. Browse all tools.