OpenKnowledge links notes directly with Claude, Codex, and Cursor
OpenKnowledge is an open-source tool for organizing notes, documents, and shared knowledge, positioned as an alternative to Obsidian and Notion. It edits Markdown files in a what-you-see-is-what-you-get style, aiming for a -like writing and sharing experience for teams.
It is available as a macOS app and a CLI, and it is free, , and open source. Claude, Codex, and Cursor s can connect to it directly, so their built-in browsers can open an OpenKnowledge editor side by side with the AI tool.
The macOS app includes a file navigator, editor, and link explorer. It also includes MCP, skills, and RAG features for uses like an LLM wiki, an AI , and writing product specs.
Key points
- OpenKnowledge is a free open-source alternative to Obsidian and Notion.
- It edits Markdown in a and aims for a -like writing flow.
- It connects directly with Claude, Codex, and Cursor s.
- It is available as a macOS app and a CLI, with use in mind.
- It includes MCP, skills, and RAG for LLM wikis, AI workflows, and spec writing.