AI BriefingShow HN: OpenKnowledge – An Open-Source, AI-First Alternative to Obsidian/Notion
·2026.06.26 01:04
Key point
A local-first, open-source AI wiki and markdown editor that integrates with Claude, Cursor, and more has launched.
Details
OpenKnowledge is a local-first markdown editor and LLM Wiki tool. It is designed with a structure that lets AI agents leverage the knowledge users write.
Key features include:
- AI editing collaboration: Collaborate through integration with Claude, Codex, and the Cursor desktop app
- AI workflow support: Comes with built-in MCP (Model Context Protocol) and templates for LLM wikis, a second brain for agents, and spec-driven development
- WYSIWYG editing: Edit markdown files as intuitively as Google Docs or Notion
- Developer-friendly environment: GitHub-based team sharing features and TUI/CLI support for terminal users
It is currently available via a macOS desktop app and a Web/CLI version, and has been released under the GPL-3.0 license.
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