Best Open-source Knowledge Base & Wiki Platforms tools

XWiki

Extensible Java-based wiki platform powering collaborative applications

Trilium

Hierarchical note‑taking app for building massive personal knowledge bases

Outline

Fast, real-time collaborative knowledge base for modern teams

AFFiNE

Unified canvas for writing, drawing, and planning together

Logseq

Privacy-first platform for knowledge management and collaboration

Supermemory

Unified AI-powered memory hub for your digital content

SiYuan

Privacy-first knowledge base with block-level linking and AI

Notesnook

Secure private note-taking app with end-to-end encryption

Anytype

Local-first, encrypted knowledge base for your digital brain

SurfSense

Private AI research agent integrated with your knowledge base

Memos

Self-hosted, privacy-first note-taking platform with full Markdown support

La Suite Docs

Real-time collaborative editor with AI tools and self-hosting

BlockNote

Block-based React editor delivering modern rich-text experience.

Docmost

Open-source collaborative wiki and documentation platform

Joplin

Offline-first Markdown note-taking with end-to-end encrypted sync

AppFlowy

AI-powered workspace alternative to Notion with data control

NoteGen

AI-powered Markdown note-taking bridging recording and writing

Foam

Personal knowledge management in VS Code with wikilinks

Ryot

Self-hosted tracker for media, fitness, and life activities

Blinko

AI-powered self-hosted note-taking for capturing fleeting thoughts

Eidos

Extensible offline-first personal data management powered by SQLite

5ire

A sleek AI assistant with MCP tool integration and local knowledge base

Documize Community

Self-hosted knowledge management platform unifying internal and external documentation

Focalboard

Open-source project management alternative to Trello and Notion