Joplin
Joplin - an open source note taking and to-do application with synchronization capabilities for Windows, macOS, Linux, Android and iOS
Vikunja
The open-source to-do app. Organize everything, on all platforms.
Cryptgeon
Cryptgeon is a secure, open-source note / file-sharing service inspired by PrivNote written in rust & svelte.
Docmost
Docmost is a collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.
AppFlowy
Bring projects, wikis, and teams together with AI. AppFlowy is an AI collaborative workspace where you achieve more without losing control of your data. The best open source alternative to Notion.
HedgeDoc
HedgeDoc is an open-source, web-based, self-hosted, collaborative markdown editor
Etherpad
Etherpad is a highly customizable open source online editor providing collaborative editing in really real-time.
Trilium
Trilium Notes is a hierarchical note taking application with focus on building large personal knowledge bases.
Affine
More than Notion and Miro's next-generation knowledge base, AFFiNE unifies planning, sorting, and creation.
Memos
A lightweight, self-hosted memo hub. Open Source and Free forever.
Flatnotes
A self-hosted, database-less note-taking web app that utilizes a flat folder of markdown files for storage.
Huly
All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)