NeoBoard is a collaborative online whiteboard from Nordeck IT + Consulting GmbH. It runs as a widget in Element Web or as a standalone app, built on the Matrix protocol. Teams use it for brainstorming, mind maps, mockups and diagrams and for project planning, with an infinite canvas, templates and a presentation mode. Editing works in real time or asynchronously. According to the vendor it targets public administrations, regulated institutions and schools. The source code is on GitHub under the Apache 2.0 licence.
Nordeck is based in Hamburg, Germany; no parent company is named. NeoBoard can run on premises or on a dedicated server, for example as a container or through a Helm chart, so the organisation decides where the data sits. The vendor states no fixed hosting location, so ask about this for any hosted variant. Whiteboard data is stored in Matrix rooms, and the vendor mentions end-to-end encryption and GDPR compliance. The vendor's website itself is served from GitHub Pages in the US. For organisations already running Matrix, it is a self-managed alternative to Miro or Mural.