WHMCS is a commercial billing and client management application. Initially released in 2005, WHMCS has grown be become the most popular integrated billing solution for web hosting service providers.
WHMCS is an all-in-one client management, billing & support solution for online businesses. Handling everything from signup to termination, WHMCS is a powerful business automation tool that puts you firmly in control. While a popular solution for web hosting service providers, WHMCS also has an increasing number of customers using the solution for other purposes.