Note: This is the information page for SALSAH Version 2, which is in an early alpha state. If you're looking for Salsah v1, go to

SALSAH is a web-based virtual research environment that helps researchers in the humanities to deal with digital sources. It allows the annotation and linkage of arbitrary sources such as digital texts, still and moving images, and sound.

SALSAH is one (generic) user interface to handle the data from the main repository called Knora. Knora has a restFul API and the features as following:

  • Stores humanities data as industry-standard RDF graphs, plus files for binary data such as digitized primary sources.
  • Based on OWL ontologies that express abstract, cross-disciplinary commonalities in the structure and semantics of research data.
  • Offers a generic HTTP-based API, implemented in Scala, for querying, annotating, and linking together heterogeneous data in a unified way.
  • Handles authentication and authorization.
  • Provides automatic versioning of data.
  • Includes Sipi, a high-performance media server implemented in C++.

Developed by the Digital Humanities Lab at the University of Basel, and supported by the Swiss Academy of Humanities and Social Sciences.

Salsah is free software, released under the GNU Affero General Public License.