Server
Self-hosted CalDAV
Run your own calendar server on your own infrastructure. Revocable public read-only links, invitations with view or edit access, and a public calendar page that opens without an account where you allow it.
AGPL-3.0-only · Self-hosted
Your calendar, on your server.
Kalendee is a self-hosted CalDAV server with first-party Kotlin Multiplatform clients for Android, iOS, and Desktop, plus a themeable web UI built on Keel. Own your data, link the calendars you already use, and let people propose times without handing everything to someone else's cloud.
Built for running it yourself
The server, the clients, and the protocol library are one project. Pick the pieces you want and host the whole thing.
Clients
Native KMP clients
First-party Kotlin Multiplatform clients for Android, iOS, and Desktop share one Compose Multiplatform UI, in the spirit of Notion Calendar / Cron — not a wrapped web app.
Web
Themeable Keel web UI
The same product in a browser, built as a Keel pack. Themes are a user-facing preference, so the clients and the web UI match end to end.
Scheduling
Scheduling proposals
Link your calendar and let people propose times against it. Access is configurable: anonymous visitors, logged-in users only, or off.
Storage
S3 / R2 object storage
Avatars and profile pictures live in S3-compatible storage and are proxied through the server, so clients never hold credentials and the bucket stays private.
Email
Optional Cloudflare email
Account verification, security alerts, calendar invites, and follower activity can go out over your own transactional email provider. Disabled, mail is logged instead.
A look at Kalendee
Preview graphics of the week view, event dialog, and public calendar page, served from
/screenshots/. They are stand-ins until real screenshots are captured from the
seeded demo data.
Self-host in minutes
The production compose file pulls the published image and runs PostgreSQL 17 next to it. Copy the example environment, set a few secrets, and start it.
cp .env.example .env
# set POSTGRES_PASSWORD / KALENDEE_DATABASE_PASSWORD,
# KALENDEE_ADMIN_PASSWORD, and KALENDEE_PUBLIC_URL
docker compose up -dFull setup, clients, and configuration are in the documentation. Licensed under AGPL-3.0-only .