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Baïkal

bolt Auto-install

Open-source self-hosted CalDAV/CardDAV server — a Google Calendar alternative you control

chat Communication

rocket_launch Install open_in_new Website

info Overview

Baïkal is a lightweight, open-source CalDAV and CardDAV server — it hosts your calendars and contacts on your own server and syncs them to any standard app you already use: Apple Calendar and Contacts, Thunderbird, DAVx5 on Android, Evolution and more. It is a privacy-friendly self-hosted alternative to Google Calendar and iCloud for keeping your events and address book under your own control.

Baïkal is a server, not another web calendar with its own heavy frontend: you connect the calendar and contacts apps you already have, and it keeps everything in sync over the open CalDAV/CardDAV protocols. A simple web admin lets you manage users, calendars and address books. Valebyte deploys it for you in one click with automatic HTTPS, so your data lives on a server you own.

check_circle Features

check Open CalDAV & CardDAV server for calendars and contacts
check Multiple calendars and address books per user
check Multi-user with a simple web admin panel
check Works with Apple Calendar/Contacts, Thunderbird, DAVx5 and Evolution
check Syncs contacts too over CardDAV, not just calendars
check Standard protocols — use the apps you already have
check Lightweight: runs comfortably on minimal resources
check One-click deployment with automatic HTTPS, your data on your own server

quiz Frequently Asked Questions

Is Baïkal a good self-hosted Google Calendar alternative? expand_more

Yes. Baïkal hosts your calendars and contacts on your own server and syncs them to standard apps over CalDAV/CardDAV, giving you a private alternative to Google Calendar and iCloud with full data ownership.

Which apps can I sync with it? expand_more

Any CalDAV/CardDAV client: Apple Calendar and Contacts, Thunderbird, DAVx5 on Android, Evolution and others. You point them at your Baïkal server URL and your calendars and contacts sync automatically.

Does it sync contacts too, or only calendars? expand_more

Both. Baïkal is a CalDAV server for calendars and a CardDAV server for contacts, so your address book syncs across devices alongside your events.

How do I set it up? expand_more

On your first visit Baïkal runs a short setup wizard where you create the admin account, then you add your calendars and connect your devices by pointing each app at your server URL.

How long does deployment take? expand_more

A few minutes. Valebyte pulls the Baïkal image, issues an HTTPS certificate and starts it; then you open your site and complete the built-in setup wizard.

Is my data private? expand_more

Yes. Your calendars, contacts and user accounts live on your own VPS and are never shared with a third party. You own the server and the data on it.

Resources

language Official Website open_in_new GitHub open_in_new menu_book Documentation open_in_new

Install Baïkal

from $15.00 /mo

App is free — you pay only for the VPS.

Install

bolt Deployed automatically — ready in minutes

route How It Works

1 Choose a location and VPS plan

2 Complete checkout

3 The app is installed automatically within minutes

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