Baïkal
Lightweight CalDAV and CardDAV server based on sabre/dav.
Baïkal vs Keeper.sh
Two self-hosted Calendar & Contacts apps, compared on the facts we track: GitHub popularity and activity, license, language, Docker images and a rough hosting estimate.
Side by side
| Baïkal | Keeper.sh | |
|---|---|---|
| Description | Lightweight CalDAV and CardDAV server based on sabre/dav. | Calendar syncing tool that pulls and pushes events between calendar sources and destinations via iCal/ICS or OAuth, with support for anonymized busy/free events. |
| GitHub stars | 3,366 | 1,439 |
| Forks | – | – |
| Open issues | – | – |
| Commits (12 months) | 26 | 385 |
| Last activity | 2026-11-03 | 2026-11-04 |
| Latest release | 0.13.0 (2026-10-19) | v2.28.11 (2026-11-03) |
| Maintenance health | Active | Active |
| License | GPL-3.0 | AGPL-3.0 |
| Language / platform | PHP | Docker |
| Docker Hub image | – | – |
| Docker pulls | – | – |
| Est. server size | ~1 GB, 1 vCPU | ~1 GB, 1 vCPU |
| Est. hosting from | $5/mo | $5/mo |
| Categories | Calendar & Contacts | Calendar & Contacts |
| Links | Website · Source | Website · Source |
What the numbers say
- Baïkal is more popular on GitHub: 3.4k stars vs 1.4k for Keeper.sh.
- Keeper.sh had more commits in the last 12 months (385 vs 26).
- Keeper.sh published a release more recently (v2.28.11 on 2026-11-03; Baïkal's latest is 0.13.0 on 2026-10-19).
- Baïkal is licensed under GPL-3.0, Keeper.sh under AGPL-3.0.
- Baïkal is written in PHP; the language of Keeper.sh is not listed upstream.
- Deployment options listed upstream: Baïkal: none listed; Keeper.sh: Docker.
Summary: Baïkal leads on GitHub popularity; Keeper.sh leads on commit activity. The right choice depends on the features you need — read both project descriptions and docs.
This summary is generated from GitHub, Docker Hub and awesome-selfhosted data as of 2026-11-05. It does not rate features or quality.
Frequently asked questions
Is Baïkal or Keeper.sh more popular?
Baïkal has more GitHub stars (3,366 vs 1,439 for Keeper.sh, as of 2026-11-05). Stars measure interest, not quality.
Which is more actively maintained, Baïkal or Keeper.sh?
Keeper.sh had more commits over the last 12 months (385 vs 26). The last recorded activity was 2026-11-03 for Baïkal and 2026-11-04 for Keeper.sh. Our health labels: Baïkal is “Active”, Keeper.sh is “Active”.
What licenses do Baïkal and Keeper.sh use?
Baïkal: GPL-3.0. Keeper.sh: AGPL-3.0.
Can I run Baïkal and Keeper.sh with Docker?
We did not detect a Docker Hub image for either app. The upstream listing mentions Docker as a deployment option for Keeper.sh. Check each project's documentation for install options.
Read more
Keeper.sh
Calendar syncing tool that pulls and pushes events between calendar sources and destinations via iCal/ICS or OAuth, with support for anonymized busy/free events.
Browse all self-hosted Calendar & Contacts apps.