fragmentarium (digital research laboratory for medieval manuscript fragments) is an online database to collect and collate fragments of medieval manuscripts making them available to researchers, collectors and historians worldwide. it is an international collaboration of major libraries and collections including the british library, bibliothèque nationale de france, martin schøyen collection, bavarian state library, harvard, yale and the vatican. it is based in switzerland and the project's current director is professor christoph flüeler from the university of fribourg and the virtual manuscript library, switzerland.