// Manage notes & knowledge
outline
Fast open-source knowledge base for growing teams.
Open source Maintained For everyone
IN ONE PARAGRAPH
outline is fast open-source knowledge base for growing teams.
Good for: Anyone who wants AI to manage notes & knowledge without setting anything up.
01How to start
- 1Open the official site or app store page (link above) and sign up.
- 2Available on: Web.
- 3Pricing: Open source — start with the free tier if there is one.
02Alternatives & comparison
Compare side by side → AFFiNE Open-source knowledge base and whiteboard, an alternative to Notion and Miro. ★ 74k private-gpt Complete API layer for private AI apps on local models: RAG, skills, tools, MCP. +1★/day siyuan Privacy-first self-hosted knowledge workspace for humans and agents. +13★/day WeKnora Tencent's open LLM knowledge platform: docs → RAG → agents. +151★/day DB-GPT Open-source agentic AI data assistant. +5★/day
03Related
Versions, why it is listed, for AI to read
Popularity evidence (third-party snapshots)
- GitHub stars：39,500 · whatstrending.ai 2026-10-10
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-10
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-12
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-13
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-14
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-15
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-16
- GitHub stars：40,842 · repos.ecosyste.ms 2026-10-19
- GitHub stars：40,965 · repos.ecosyste.ms 2026-10-20
- GitHub stars：40,965 · repos.ecosyste.ms 2026-10-21
- GitHub stars：40,965 · repos.ecosyste.ms 2026-10-22
For AI agents
- Interfaces：its own app or website
- Machine-readable record：/api/v1/software/outline.json · llms.txt
- Added 2026-10-10 · updated 2026-10-22