// AI notes & knowledge management
Manage notes & knowledge
Notes, personal knowledge bases and document Q&A with AI built in.
23 tools15 open sourcechecked 2026-10-22Compare side by side →
How to choose · start with these three
23 / 23 items
Notion Workspace combining docs, knowledge base and AI agents. Closed / commercial Freemium WebmacOSWindows NotebookLM Google's source-grounded notebook for Q&A, summaries and audio overviews. Closed / commercial Freemium WebiOSAndroid Obsidian Local Markdown notes and personal knowledge base; plugins connect AI and agents. Closed / commercial Freemium macOSWindowsLinux Glean Enterprise search and knowledge assistant connecting data across company apps. Closed / commercial Paid Web YouMind Creator workspace turning collected materials into articles, slides, videos and sites. Closed / commercial Freemium Web WeKnora ★ 35k Tencent's open LLM knowledge platform: docs → RAG → agents. Open source Web AFFiNE ★ 74k Open-source knowledge base and whiteboard, an alternative to Notion and Miro. Open source WebmacOSWindows private-gpt ★ 58k Complete API layer for private AI apps on local models: RAG, skills, tools, MCP. Open source APIlocal siyuan v3.8.8 ★ 47k Privacy-first self-hosted knowledge workspace for humans and agents. Open source WindowsmacOSLinux outline ★ 41k Fast open-source knowledge base for growing teams. Open source Web DB-GPT ★ 20k Open-source agentic AI data assistant. Open source Web WrenAI ★ 18k GenBI for AI agents: governed text-to-SQL. Open source Web claudian ★ 16k Obsidian plugin embedding Claude Code/Codex as collaborators. Open source Obsidian Yuxi ★ 7.5k Agent harness integrating a LightRAG knowledge base. Open source Web lightdash ★ 6.2k Agentic BI — analytics at the speed of code. Open source Web obsidian-mind ★ 5.4k Self-organizing Obsidian vault giving coding agents persistent memory. Open source Obsidian OpenKB ★ 4.8k Open LLM knowledge base. Open source self-host OB1 ★ 4.7k Open Brain — infrastructure layer for your thinking. Open source local open-knowledge v0.87.7 ★ 4.7k Beautiful AI-native markdown IDE and LLM wiki. Open source desktop Heptabase Whiteboard-style knowledge mapping and research notes Closed / commercial Logseq Open-source, local-first outliner notes Open source Mem AI notes that organise themselves Closed / commercial Tencent ima Tencent AI knowledge base and document Q&A Closed / commercial
About this data
- Default order is “recommended”: editorial picks first, then by popularity; general-purpose developer software and archived projects are listed last.
- Data checked 2026-10-22. Official links only. JSON API