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Show HN: OpenKnowledge – open source AI-first alternative to Obsidian/Notion

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first seen Jun 25, 2026 · last seen Jun 30, 2026 · published Jun 25, 2026

Featured on 1 day: June 26, 2026.

Posted on X

2026-06-26
OpenKnowledge is a markdown editor with local-first storage and an LLM sidebar. The interesting part: it's MIT-licensed, so you could fork it, wrap auth + sync, and have a hosted Notion competitor shipping in a weekend. The hard part stays distribution.