Compare / Radicale vs Baïkal

Radicale vs Baïkal

Pick Radicale if you want the published CalDAV box (a small GPL-3.0 calendar and contact server). Pick Baïkal if you want that GPL-3.0 sabre/dav PHP calendar.

Facts checked 27 Oct 2026. License, language, and GitHub activity come from the catalog or the project's own repo. "Not in the catalog row" means the public catalog dump does not store that number.

Radicale in the catalog Baïkal in the catalog Start on Railway

How they compare

RadicaleBaïkal
LicenseGNU General Public License v3.0 (catalog) sourceGNU General Public License v3.0 (catalog) source
LanguagePython (catalog) PHP (catalog)
GitHub activity5,124 stars in the catalog source3,335 stars in the catalog source
Self-hostCalDAV and CardDAV. Official docs at radicale.org. sabre/dav calendar and contacts. Official docs at sabre.io/baikal.
Best forA small CalDAV box clients sync. A PHP CalDAV desk if Radicale is not the shape.

Self-hosting and resource needs

Radicale is Kozea/Radicale (GPL-3.0; 5,124 stars in the catalog). Baïkal is sabre-io/Baikal (GPL-3.0; 3,335 stars in the catalog). A group poll stays on /stacks/rallly-scheduling. Neither CalDAV box has a one-click c17 Railway template.

FAQ

Reclaim or Motion?
This pair covers CalDAV calendars and contacts, not AI day planning.
Where is Cal.com?
Cal.com is a booking tool listed on /best/scheduling-booking. This pair covers calendar servers.
Are these free?
Both are GPL-3.0. You pay hosting.
How do I deploy the calendar?
See /stacks/radicale-contacts and the official Radicale or Baïkal installation documentation.

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