Digimindmap

TeamMapper

Mindmapping made simple: Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate on mindmaps.

AFFiNE Community Edition

Next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, customizable and ready to use (alternative to Notion and Miro). (Demo, Source Code) MIT/AGPL-3.0 Docker

SiYuan

A privacy-first personal knowledge management software, written in typescript and golang. (Source Code) AGPL-3.0 Docker/Go

LibreKB

Web-based knowledge base solution. A simple web app, it runs on pretty much any web server or hosting provider with PHP and MySQL. (Source Code) GPL-3.0 PHP