CATS is the industry’s leading open source Applicant Tracking System (ATS).

CATS has a clean user-interface, is easy to use, and has all the bells and whistles of expensive proprietary commercial ATS packages.

Built on the LAMP platform (Linux, Apache, MySQL, and PHP), it can be installed and running in 5 minutes on a Unix or Windows platform. It features built-in applicant tracking, resume search, CRM, and a reporting dashboard for staffing agencies and corporate HR departments.