Self-hostable open-source Notion alternatives
All-in-one docs, wiki and notes. Self-host seekers want data ownership and no monthly per-user fee.
Among 4 self-hostable open-source Notion alternatives tracked here, AppFlowy currently leads on the Self-Host Health Score (99/100, 72k★, last commit 1d ago). For a Raspberry Pi or a low-RAM VPS, Outline is the lightest at a documented ~512 MB (PostgreSQL). 4 of them publish official ARM64 images (Raspberry Pi / Apple Silicon). 3 offer a one-click deploy (e.g. Coolify, Railway, PikaPods).
| Tool | Health | Stars | Database | Min RAM | ARM/Pi | One-click | Updated |
|---|---|---|---|---|---|---|---|
| AppFlowy
↗
Open-source Notion alternative built in Rust + Flutter. |
99 Thriving |
72k★ Dart |
PostgreSQL | 2048 MB | ✓ ● | Coolify Railway ↗ | 1d ago AGPL-3.0 |
| AFFiNE
↗
Docs + whiteboard + database in one local-first workspace. |
98 Thriving |
69k★ TypeScript |
PostgreSQL | 2048 MB | ✓ ● | Railway ↗ Coolify | today |
| Outline
↗
Fast team wiki/knowledge base with Slack/Markdown integration. |
97 Thriving |
39k★ TypeScript |
PostgreSQL | 512 MB | ✓ ● | — | today |
| Docmost
↗
Collaborative wiki & docs with real-time editing and spaces. |
95 Thriving |
21k★ TypeScript |
PostgreSQL | 1024 MB | ✓ ● | Railway ↗ Coolify PikaPods ↗ | today AGPL-3.0 |
FAQ
What is the best self-hostable Notion alternative?
By the live Self-Host Health Score, AppFlowy ranks highest (99/100).
Which open-source Notion alternatives run on a Raspberry Pi?
Those publishing official ARM64 images: AppFlowy, AFFiNE, Outline, Docmost.
Which is the lightest on RAM?
Outline, at about 512 MB.