DD-WRT is free Linux-based firmware for several wireless routers, most notably the Linksys WRT54G. Developed by NewMedia-NET GmbH
License: Open Source
DD-WRT is suited for users looking to enhance their router's capabilities with advanced features and custom firmware, while ClearOS is designed for businesses needing a server solution with comprehensive management tools. The key difference lies in their intended use; DD-WRT targets router enhancement, whereas ClearOS serves as a full-fledged server operating system.