Free Notion Alternatives - Open Source Project Management Tools

Microsoft OneNote: Free Cross Platform Notebook

Microsoft's free digital notebook with cross-platform sync, multimedia support, and Office integration.

Confluence Android iOS macOS

ClickUp

All-in-one productivity platform with project management, docs, and collaboration features. Generous free plan.

Confluence Android iOS Linux

TriliumNext (Trilium Notes)

Feature-rich hierarchical note-taking app for building large personal knowledge bases. The original Trilium project has moved to the TriliumNext community fork with active development.

Evernote Linux macOS Open Source

Logseq

Privacy-first, open-source knowledge base with block-based editing and local file storage.

Evernote Android iOS Linux

AppFlowy

Open-source AI workspace combining projects, wikis & teams with offline support and data ownership.

Confluence Android iOS Linux

Anytype

Privacy-first knowledge management with local encryption, peer-to-peer sync, and offline-first architecture.

Confluence Android iOS Linux

Microsoft OneNote

Free digital notebook with unlimited storage, cross-platform sync, and powerful organization tools for notes and collaboration.

Confluence Android iOS macOS

Joplin

Open-source note-taking app with end-to-end encryption, Markdown support, and cross-platform sync for privacy-focused users.

Evernote Android iOS Linux

Outline

Modern team wiki with real-time collaboration, slash commands, and rich integrations. Clean interface for productive teams.

Confluence Self Hosted

BookStack

Open-source wiki software with simple interface, built-in diagrams, and powerful organization tools. Free MIT-licensed alternative.

Confluence Self Hosted

Wiki.js

Modern, extensible wiki platform with beautiful interface. Supports multiple editors, authentication methods, and storage options.

Confluence Self Hosted