AppFlowy

AppFlowy is an open source workspace that brings together documents, wikis, project tracking, and team collaboration in one place. It's built as a self-hostable alternative to tools like Notion, designed for people who want a modern workspace without handing their data to a third-party cloud.

The core of the product is a block-based editor paired with flexible databases. You can build pages with rich content types, attach properties and labels to records, and switch between different views of the same data. Grids, boards, and calendars are all available. Custom themes and fonts let you adjust the look to your preference.

AI is built directly into the workspace, not bolted on as a separate add-on. You can ask questions across your pages, generate and improve writing, and autofill database fields from existing content. AppFlowy supports multiple AI backends including GPT-5, Gemini 2.5, and Claude 3.7, and it also supports running local models like Mistral 7B and Llama 3 on your own machine. That local option matters for teams or individuals who need AI assistance without sending data to external servers — something tools like Flowise AI or Langflow approach from a different angle.

Offline mode is fully supported. The app works without an internet connection and syncs when connectivity returns, across desktop and mobile. iOS and Android apps are available alongside the desktop clients.

Self-hosting is a first-class option, not a workaround. You can run AppFlowy on your own infrastructure with no vendor lock-in. For teams that can't store sensitive information in someone else's cloud, this is a practical path. If you're also evaluating for database-heavy workflows or for team collaboration, AppFlowy sits at the intersection of both.