HTML Minifier

Minifying HTML strips what browsers ignore — comments, indentation, line breaks between block elements and redundant attribute values — so pages download and parse a little faster. This minifier tokenizes the markup instead of using blind search-and-replace, so whitespace inside <pre> and <textarea> is left alone, single spaces between inline words survive, and quoted attribute values are never broken.

How to use this tool

1. Paste the HTML page or fragment.
2. Choose what to remove: comments, extra whitespace, redundant attributes, attribute quotes.
3. Leave inline CSS and JSON compression on unless you need the original formatting.
4. Copy the minified HTML and check the bytes saved.

Formula

saved % = (original bytes − minified bytes) ÷ original bytes × 100

Sizes are UTF-8 bytes. Runs of whitespace become one space; a space next to a block-level tag (div, p, li, td and so on) and whitespace between the elements inside head are removed because they never render. Spaces beside inline boxes such as select, svg or video, and around scripts and kept comments, stay. type="text/javascript" and type="text/css" are dropped because they are the defaults, and boolean attributes like checked="checked" become checked.

Example

A 25-byte snippet <p> + newline + a b + newline + </p> + newline minifies to <p>a b</p>, which is 10 bytes: the whitespace next to the block tags goes and the run between the two words collapses to one space, saving 60%.