HTMLMinifier

HTMLMinifier is a highly configurable and well-tested JavaScript-based tool designed for aggressive HTML minification. The current stable version is 4.0.0. While minor bug fixes and dependency upgrades are released periodically, major version updates, like the transition from v3 to v4, occur less frequently. Its core functionality involves parsing HTML into a tree structure, applying various optimization rules, and then outputting a compacted HTML string. A key differentiator highlighted in its documentation is its effectiveness in reducing file sizes compared to several alternative solutions, making it suitable for performance optimization in web projects. It provides extensive options to control minification, including collapsing whitespace, removing comments, minifying inline CSS and JavaScript, and handling various HTML tag-specific optimizations.