> /v1/alternatives/notion
Open source alternatives to Notion[006]
Notion all-in-one workspace for notes, docs, wikis, databases, and project management. Below are 6 self-hostable open source alternatives, ranked by GitHub popularity.
AppFlowy
Bring projects, wikis, and teams together with AI
★ STARS
70.3k
⑂ FORKS
4.0k
Affine
All-in-one workspace for note-taking, whiteboarding, and task management with real-time collaboration and local-first architecture.
★ STARS
68.1k
⑂ FORKS
4.8k
SiYuan
SiYuan is a personal knowledge management system that prioritizes privacy, supports Markdown, and offers block-level referencing and bidirectional linking.
★ STARS
43.7k
⑂ FORKS
2.8k
Logseq
A privacy-first, open-source platform for networked thought. Organize, connect, and discover your ideas with ease.
★ STARS
42.7k
⑂ FORKS
2.6k
Outline
The fastest knowledge base for growing teams
★ STARS
38.4k
⑂ FORKS
3.3k
AnyType
A versatile, open-source tool for organizing thoughts, notes, and data with customizable objects and relational structures.
★ STARS
7.5k
⑂ FORKS
470
// EDITOR'S TAKE
AppFlowy and AnyType are the most direct Notion clones; Outline is a stronger team wiki; Logseq and Obsidian win for personal knowledge bases.
// FREQUENTLY ASKED
What is the best open source Notion alternative?
AppFlowy is the most popular open source Notion alternative by GitHub stars (70,318 stars). The other 5 options are ranked above.
Are these Notion alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.