HTML Minifier

HTML Minifier removes what a browser does not need: comments, the whitespace between tags, and the indentation that made the file readable. The result is the same page in fewer bytes.

Whitespace in HTML is not always insignificant, and this is where careless minifiers break pages. A space between two inline elements is rendered as a space, so removing it closes the gap between two words. Content inside pre and textarea is displayed exactly as written. The tool preserves both, which means the saving is slightly smaller and the page still looks right.

The size comparison shows bytes before and after and the percentage saved. It is worth being realistic about the benefit: once your server applies gzip or brotli compression, repeated whitespace compresses to almost nothing anyway, so minifying HTML typically saves a few percent of the transferred size rather than the headline figure. It is still worth doing in a build; it is not worth breaking a page for.

• Removes comments, with an option to keep conditional ones
• Collapses whitespace between block-level tags
• Preserves pre, textarea, script and style content
• Keeps meaningful spaces between inline elements
• Optional removal of redundant attribute quotes
• Shows original size, minified size and percentage saved
• Copy or download the result

The html minifier is used by writers, developers, students, marketers and anyone else who needs the job done once without installing software. Common cases include:

• Shrinking a page before deploying it
• Reducing the size of an HTML email template
• Compressing a fragment embedded in a script
• Measuring how much whitespace a template carries
• Preparing a single-file HTML document