Anytype

Anytype is a local-first, end-to-end encrypted productivity and knowledge management app, often described as a private alternative to Notion. It lets people create notes, documents, tasks, and structured knowledge using objects, types, and relations on an offline-first data model that keeps your data on your devices, encrypted and yours. It supports linking, graph views, and collaborative spaces synced peer-to-peer. Privacy-conscious individuals and teams use Anytype to build a personal or shared knowledge base. Anytype is free, with optional paid tiers for additional sync storage and network features.