HTMLMinifier

HTMLMinifier is a highly configurable, well-tested, JavaScript-based HTML minifier. Minifier options like sortAttributes and sortClassName won't impact the plain-text size of the output. However, they form long repetitive chains of characters that should improve compression ratio of gzip used in HTTP compression. SVG tags are automatically recognized, and when they are minified, both case-sensitivity and closing slashes are preserved, regardless of the minification settings used for the rest of the file. HTMLMinifier can't work with invalid or partial chunks of markup. This is because it parses markup into a tree structure, then modifies it (removing anything that was specified for removal, ignoring anything that was specified to be ignored, etc.), then it creates a markup out of that tree and returns it.