Nuclino is a collaborative document editing service from Germany.

XWiki is an open-source platform for knowledge management and collaboration, built in Europe, with a focus on digital sovereignty. It helps teams create, structure, and share information efficiently across departments, projects, or entire organizations. XWiki can be deployed self-hosted or cloud-based, giving full control over data location and compliance needs. XWiki features a browser-based WYSIWYG editor, nested pages, version history, and granular permissions. It enables collaborative editing, content reuse through templates, and advanced navigation across linked documentation. The platform supports multilingual content and includes tools to structure data through forms and custom metadata.