Discover the best Notion Alternative open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
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.
Kition brings Markdown, DataTable, WhiteBoard, a tool-using AI agent, browser research, and visual workflows into one desktop workspace.
Koru is an open-source, local-first workspace for managing notes, documents, tasks, and collaborating with AI agents. Work offline and sync securely across devices using encrypted P2P, self-hosted sync (free, coming soon) or optional cloud sync (paid)
Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.
Write like nobody’s watching. Because they aren't.
An open‑source technical wiki connected to the systems it describes
Local-first like Obsidian, polished like Notion. Free & open source: wiki links, slash commands, to-dos, local or cloud sync, and MCP for AI. Web + Mac.
The open-source workspace for people and AI agents. Docs, databases and realtime collaboration with an MCP server in the same binary, so agents work in the same workspace on the same permissions. One Go binary, one SQLite file, self-hosted.
One private place for everything on your mind. Capture it, write it, plan it. Notes, tasks, inbox and journal, end-to-end encrypted.