Ad Fontes is a web platform designed to train students and scholars for medieval archival work. Administered through the University of Zurich, the project requires the user to register for a free account that then allows him or her to take modules on the use of archives. Numerous modules exist, including ones on transcription, coinage, heraldry, chronology, dating, and maps. Transcription and script training focuses on several languages, including medieval Latin, German, and Scandinavian languages among others. Transcription modules include quizzes that allow a user to test their progress.
The platform is continuously updated, with new modules added every few months.