Notion mixes pages, databases and team wikis in one place, but your notes live on its servers and exporting a large workspace is slow. The projects here cover the same ground, and most of them can run on your own server or store notes as local files.
Some are personal knowledge bases, others are team wikis. Check how each one stores data (plain Markdown, a local database or a server) and whether it syncs between devices before you move years of notes.
70% health, 30% momentum. Projects younger than 12 months, or too new to assess, are listed under Rising newcomers while they gain stars.
Ranked by health, then momentum
There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.
Build your personal knowledge base with Trilium Notes
An open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together 开源、隐私优先、自托管的知识工作空间，让人与智能体在此协作
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.
Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.
A privacy-first, open-source platform for knowledge management and collaboration. Download link: http://github.com/logseq/logseq/releases. roadmap: https://logseq.io/p/NX4mc_ggEV
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
Official Anytype client for MacOS, Linux, and Windows
All 8 ranked repos are shown. 2 newcomers are listed separately.
Under 12 months old, or too new to assess, and gaining stars.
An open‑source technical wiki connected to the systems it describes
End-to-end encrypted notes, tasks, files, passwords, journal and bookmarks. Keyed by a 12-word BIP-39 phrase: no email, no password, no account to leak. The full client source for web, desktop and mobile is published, along with the encryption (XChaCha20-Poly1305, HKDF-SHA256, Ed25519) and the threat model, so the privacy claims are falsifiable.
