VuFind is a library resource portal designed and developed for libraries by libraries. The goal of VuFind is to enable your users to search and browse through all of your library's resources by replacing the traditional OPAC to include:
VuFind is completely modular so you can implement just the basic
system, or all of the components. And since it's open source, you can
modify the modules to best fit your need or you can add new modules to
extend your resource offerings.