YUI Compressor

YUI Compressor: JavaScript and CSS Minification Tool

YUI Compressor is a JavaScript and CSS minification tool. It removes whitespace, comments, and unnecessary code to reduce file size without losing functionality.

What is YUI Compressor?

YUI Compressor is an open-source Java-based tool for minifying JavaScript and CSS code. It was originally developed by Yahoo! and is now maintained by the YUI Library project.

The main purpose of YUI Compressor is to reduce the file size of JS and CSS assets for faster page loads. It does this by removing extraneous whitespace, stripping out comments, and shortening variable names without altering code behavior and functionality.

Some key features of YUI Compressor include:

• Drastic file size reduction - typically over 50% for CSS and upwards of 80% for JS files
• Preserves CSS formatting for easier debugging
• Retains important JS comments marked with /*!
• Command line interface for integration into build processes
• Ant task for automation in Java environments
• Plug-in available for Grunt and Gulp workflows

Overall, YUI Compressor is one of the most robust and widely-used tools for compressing JS and CSS assets. It integrates easily into both desktop and web development workflows. The dramatic file size savings lead to improved site performance, especially important for mobile environments.

YUI Compressor Features

Official Links