TagSpaces is a file-based workspace for organising documents, images and other files with tags, folders, notes, tasks, maps and kanban boards. The application runs as a desktop program on the user's own device and also works offline. Storage can be the local file system or an S3-compatible service chosen by the organisation, such as AWS S3, Cloudflare R2 or a self-managed Garage instance. It suits teams that prefer not to keep their files in a cloud service.
TagSpaces is published by TagSpaces GmbH, based in Baldham near Munich, Germany. The software is open source under the AGPL-3.0 licence, and its source code is public on GitHub. The project also offers a commercial licence for vendors and resellers; some Pro components are proprietary and fall under a separate end-user licence. The product page describes no vendor-operated cloud, so files stay on the device or in the storage the organisation selects. For a European organisation, the German seat, the open source code and the option to self-host keep data processing under its own control.