Trix-Archiv is an online community and information resource for enthusiasts of Trix model railways, with a particular focus on Trix Express. It brings together a discussion forum and a public archive covering Trix vehicles, catalogs, and accessories. Members can exchange knowledge, share practical tips, discuss the hobby, and explore material contributed by the community.

The site describes its archive as the largest collection dedicated to Trix and Trix Express, built through the ongoing efforts of its members. It also invites clubs, regular meetups, and other groups to share event dates, photographs, and related information. Visitors can browse a limited selection of forum content, while free registration provides access to the complete archive and additional posts.

The site offers common community features, including member registration, a list of online users, forum guidance, and a Trix Express chat. Overall, Trix-Archiv serves as a gathering place for Trix enthusiasts to find historical reference material, connect with fellow hobbyists, and contribute to a shared resource