Smoothwall is an Open Source free firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface. Developed by SmoothWall Ltd.
License: Open Source
SmoothWall offers robust security features with a focus on firewall and content filtering, making it ideal for education and organizations needing strict web access control. ClearOS, on the other hand, provides a versatile platform suitable for both home and business environments with extensive software options and integrations.