Anytype

Anytype is a local-first, offline-capable workspace for notes, tasks, wikis, and databases that encrypts data end-to-end and stores it on your own device by default, with optional peer-to-peer sync across devices. It's built around flexible object types and relations rather than rigid folders and pages, so a single item (a book, a task, a contact) can show up in multiple views and databases at once, similar in spirit to Notion but structured more like a personal graph database. Everything is organized into spaces, which can be kept private or shared with a small group for collaborative work.

It targets people who want Notion-style flexibility for notes and project databases but are uncomfortable with their entire knowledge base sitting on a third party's servers, along with users who want something that keeps working without an internet connection. Anytype has added AI features for writing help, summarization, and search, and it supports Markdown import/export along with a growing set of integrations, though its plugin and integration ecosystem is still smaller than Notion's. The product is still under active development (it left closed beta relatively recently), so some collaboration and mobile features are less mature than in longer-established competitors.