Anytype

Anytype is an open source, local-first productivity suite that combines a Notion-style block editor, databases, kanban boards, calendars, and a peer-to-peer sync network. It is built around a CRDT-based protocol (any-sync) that encrypts all content end-to-end and replicates between devices without a central server.

Anytype is fully usable offline, supports rich blocks, relations, sets, queries, and a powerful type system that lets users define their own data structures. The desktop and mobile clients are open source, and the network is operated as a public, permissionless system for anyone to join.

Released under a source-available license and available for macOS, Windows, Linux, iOS, and Android, Anytype is a strong fit for individuals and small teams that want a private, vendor-independent alternative to Notion, Obsidian, and Roam Research.