It brings pilots and enthusiasts together to exchange experience, ask technical and practical questions, and share knowledge about aircraft, training, safety, weather, regulations, and flight planning. Members can discover flight schools and airfields, connect with other pilots, and organize or join shared flights, fly-ins, courses, and aviation events.

The site offers discussion forums, aviation news and a weekly digest, member profiles, a knowledge wiki, and collections of photos and videos. Its flight-planning tools include Flydays, where users can share planned journeys and find fellow pilots with similar destinations. Visitors can also browse listings for ultralight aircraft and related equipment in the aircraft marketplace, as well as information on airfields and flight schools. The community covers a broad range of ultralight flying, including fixed-wing aircraft and gyroplanes. Following a redesign, ulForum.de describes itself as a modern digital home base, with improved search and updated features for planning flights, maintaining contacts, and sharing expertise.