Atomic Server vs SiYuan
A side-by-side comparison of Atomic Server and SiYuan — pricing, license, deployment, and where each tool wins.
Atomic Server
atomicserver.eu
Knowledge graph database with documents (similar to Notion), tables, search, and a powerful linked data API. Lightweight, very fast and no runtime dependencies.
SiYuan
b3log.org
A privacy-first personal knowledge management software, written in typescript and golang.
| Feature | Atomic Server | SiYuan |
|---|---|---|
| Pricing | Free | Free |
| Model | Open-source | Open-source |
| License | CC-BY-SA-3.0 | CC-BY-SA-3.0 |
| Deployment | Self-hosted | Self-hosted, Cloud |
| Category | Knowledge Management Tools | Knowledge Management Tools |
| Self-hosted | ✓Yes | ✓Yes |
| Free tier | ✓Yes | ✓Yes |
Pick Atomic Server if…
- ✓You prefer Atomic Server's feature set or ecosystem fit.
Pick SiYuan if…
- ✓You prefer SiYuan's feature set or ecosystem fit.
Switch from Atomic Server → SiYuan
4–16hmedium risk
Plan a sprint — 4-16 engineering hours, run in parallel for a week.
Export from Atomic Server: CSV, JSON
1 things to watch
- ⚠Manual data review recommended
Switch from SiYuan → Atomic Server
4–16hmedium risk
Plan a sprint — 4-16 engineering hours, run in parallel for a week.
Export from SiYuan: CSV, JSON
1 things to watch
- ⚠Manual data review recommended