Knowledge Management Open Source Tools

Alternative toExpanDrive

Unified file explorer that spans your devices and cloud drives

• 39,272 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toNotion

Self-hosted hierarchical notes with scripting and note encryption

• 38,433 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toMicrosoft OneDrive

Self-hosted collaboration hub with file sync, calendar, and messaging.

• 37,178 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toGlean

Self-hosted knowledge base with RAG search, AI agent, and wiki

• 34,874 GitHub stars
• MITLicence MIT
• #LLM

Alternative toZep

Persistent memory for AI agents across sessions

• 32,595 GitHub stars
• Apache-2.0Licence Apache-2.0
• #LLM

Alternative toQuizlet

Spaced repetition flashcards that make memory reliable

• 32,187 GitHub stars
• AGPL-3.0-or-laterLicence AGPL-3.0-or-later

InCustomer Support

Open source AI plugins for knowledge workers in Claude

• 30,627 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative tomymind

Save links and notes with AI auto-tags, no manual organization

• 29,838 GitHub stars
• AGPL-3.0Licence AGPL-3.0
• #AI Agents

Alternative toContextPool

Persistent memory for AI coding agents

• 29,707 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toLinear

One open source workspace to replace Jira, Slack, and Notion

• 27,941 GitHub stars
• EPL-2.0Licence EPL-2.0