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.
Keeper.sh vs Radicale
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
| Keeper.sh | Radicale | |
|---|---|---|
| Description | 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. | Simple calendar and contact server with extremely low administrative overhead. |
| GitHub stars | 1,439 | 5,185 |
| Forks | – | – |
| Open issues | – | – |
| Commits (12 months) | 385 | 1.7k |
| Last activity | 2026-11-04 | 2026-11-04 |
| Latest release | v2.28.11 (2026-11-03) | v3.9.0 (2026-10-25) |
| Maintenance health | Active | Active |
| License | AGPL-3.0 | GPL-3.0 |
| Language / platform | Docker | Python, deb |
| 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
- Radicale is more popular on GitHub: 5.2k stars vs 1.4k for Keeper.sh.
- Radicale had more commits in the last 12 months (1,662 vs 385).
- Keeper.sh published a release more recently (v2.28.11 on 2026-11-03; Radicale's latest is v3.9.0 on 2026-10-25).
- Keeper.sh is licensed under AGPL-3.0, Radicale under GPL-3.0.
- Radicale is written in Python; the language of Keeper.sh is not listed upstream.
- Deployment options listed upstream: Keeper.sh: Docker; Radicale: deb.
Summary: Radicale leads on GitHub popularity and 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 Keeper.sh or Radicale more popular?
Radicale has more GitHub stars (5,185 vs 1,439 for Keeper.sh, as of 2026-11-05). Stars measure interest, not quality.
Which is more actively maintained, Keeper.sh or Radicale?
Radicale had more commits over the last 12 months (1,662 vs 385). Both had repository activity on 2026-11-04. Our health labels: Keeper.sh is “Active”, Radicale is “Active”.
What licenses do Keeper.sh and Radicale use?
Keeper.sh: AGPL-3.0. Radicale: GPL-3.0.
Can I run Keeper.sh and Radicale 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
Radicale
Simple calendar and contact server with extremely low administrative overhead.
Browse all self-hosted Calendar & Contacts apps.