Home / knowledge-management-tools / Atomic Server

6 self-hosted alternatives to Atomic Server (2026)

Knowledge graph database with documents (similar to Notion), tables, search, and a powerful linked data API. Lightweight, very fast and no runtime dependencies.

License: MIT · Language: Docker/Rust source code

AFFiNE Community Edition source

Next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, customizable and ready to use (alternative to Notion and Miro).

MIT/AGPL-3.0Docker

Digimindmap source

Create simple mindmaps (documentation in French).

AGPL-3.0Nodejs/PHP

LibreKB source

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

GPL-3.0PHP

memEx

Structured personal knowledge base, inspired by zettlekasten and org-mode.

AGPL-3.0Docker

SiYuan source

A privacy-first personal knowledge management software, written in typescript and golang.

AGPL-3.0Docker/Go

TeamMapper

Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate live on mindmaps.

MITDocker/Nodejs

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