The WordPress Plugin WP Minify, integrated the Minify engine into your wordpress blog. Once the Plugin enabled, it will combine and compress JS and CSS files to improve your wordpress blog page load time. Firstly WP Minify grabs JS and CSS files in your generated WordPress page and passes that list to the Minify engine. The Minify engine then returns a consolidated, minified, and compressed script or style for WP Minify to reference in the WordPress header thus helps to increase page load time.

Features of WP Minify:
1. Easily integrate Minify into your WordPress blog.
2. Debug mode lets you combine files without Minifying them.
3. Ability to include extra JS and CSS files for Minifying.
4. Ability to exclude certain JS and CSS files for Minifying.

Download WP Minify Plugin, Also take a look at 5 Tips to speed up your WordPress Blog