Open Source Knowledge Base Projects

Discover 25 open source Knowledge Base repositories from GitHub, each with an analysis of what it does, key features, use cases and alternatives. Knowledge Base projects here are most often combined with Self Hosted, TypeScript and AI Agents. Last updated October 4, 2026.

25 repositories · updated October 4, 2026

siyuan: Organize Knowledge in a Self-Hosted Workspace

siyuan: Organize Knowledge in a Self-Hosted Workspace

SiYuan is a privacy-first knowledge workspace for organizing notes as linked content blocks. It combines a Markdown WYSIWYG editor, references, databases, flashcards, and AI features, with desktop, mobile, and self-hosted options.

TypeScriptKnowledge BaseMarkdown
Added Oct 12, 2025 View details
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Self Hosted 362TypeScript 365AI Agents 406LLM 274AI 276Python 607RAG 59Local First 66MCP 182Markdown 36Productivity 118CLI 286
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