AFFiNE is an open-source, privacy-focused knowledge base that integrates planning, sorting, and creation into a single platform, serving as an alternative to tools like Notion and Miro. It features a unique edgeless canvas that allows for the combination of various content types and supports real-time collaboration. Users can self-host and customize their experience, making it a versatile tool for productivity and creativity.

Docmost is an open-source collaborative wiki and documentation software that serves as an alternative to Confluence and Notion. It offers features such as real-time collaboration, diagrams, permissions management, and supports multiple languages, all under the AGPL 3.0 license. The platform is designed to facilitate knowledge sharing and documentation among teams.