Self-Hosted Calendar & Scheduling Solutions for 2026

Your calendar contains some of your most sensitive data — meeting schedules, personal appointments, and daily routines that reveal patterns about your life. Yet most people trust this information to Google, Microsoft, or Apple without a second thought.

Self-hosting your calendar gives you complete control over this data while maintaining compatibility with standard protocols that work with any calendar app. Let's explore the best self-hosted calendar and scheduling solutions available in 2026.

Quick Comparison: Self-Hosted Calendar Solutions

Understanding the Options

Before diving into specific solutions, it's important to understand the different types of calendar tools:

• CalDAV Servers — Standard protocol servers that sync with any calendar app (iOS Calendar, Thunderbird, etc.)
• Booking Platforms — Let others schedule appointments with you (like Calendly)
• Resource Scheduling — Book meeting rooms, equipment, or shared resources
• Scheduling Polls — Find the best meeting time among a group

1. Cal.com — The Modern Calendly Alternative

Cal.com is the open-source answer to Calendly. It provides a beautiful, modern booking interface that lets others schedule time with you while you maintain full control of your data and scheduling rules.

Key Features

• Customizable Booking Pages — Personal scheduling links with your branding
• Calendar Integration — Sync with Google Calendar, Outlook, or CalDAV servers
• Team Scheduling — Round-robin assignments, collective availability
• Workflows & Automations — Send reminders, follow-ups, and custom notifications
• Video Integration — Built-in integrations with Zoom, Google Meet, Daily.co
• Payments — Accept payments for bookings via Stripe
• Embed Options — Embed booking widget on your website

Deployment

# docker-compose.yml for Cal.com
services:
  calcom:
    image: calcom/cal.com:latest
    restart: unless-stopped
    environment:
      DATABASE_URL: "postgresql://calcom:password@db:5432/calcom"
      NEXTAUTH_SECRET: "your-secret-key"
      CALENDSO_ENCRYPTION_KEY: "your-encryption-key"
      NEXT_PUBLIC_WEBAPP_URL: "https://cal.yourdomain.com"
    ports:
      - "3000:3000"
    depends_on:
      - db

  db:
    image: postgres:15
    restart: unless-stopped
    environment:
      POSTGRES_DB: calcom
      POSTGRES_USER: calcom
      POSTGRES_PASSWORD: password
    volumes:
      - ./postgres:/var/lib/postgresql/data

Pros & Cons

✅ Pros: Beautiful UI, extensive integrations, active development, team features

❌ Cons: Resource-heavy, complex setup, not a CalDAV server (syncs with external calendars)

2. Radicale — The Minimalist's Choice

Radicale is a small, fast, and simple CalDAV/CardDAV server written in Python. It stores calendars and contacts in files, requires almost no configuration, and runs with minimal resources.

Key Features

• CalDAV & CardDAV — Both calendars and contacts in one server
• File-Based Storage — No database required, simple backups
• Minimal Resources — Runs on any hardware, even Raspberry Pi Zero
• HTTPS Support — Built-in TLS support
• Authentication — Multiple auth backends (htpasswd, LDAP, PAM)
• Git-Friendly — Storage format works well with version control

Deployment

# docker-compose.yml for Radicale
services:
  radicale:
    image: tomsquest/docker-radicale:latest
    restart: unless-stopped
    ports:
      - "5232:5232"
    volumes:
      - ./data:/data
      - ./config:/config
    environment:
      RADICALE_CONFIG: /config/config

Create a basic config file at ./config/config:

[server]
hosts = 0.0.0.0:5232

[auth]
type = htpasswd
htpasswd_filename = /config/users
htpasswd_encryption = bcrypt

[storage]
filesystem_folder = /data/collections

Pros & Cons

✅ Pros: Extremely lightweight, simple setup, reliable, file-based storage

❌ Cons: Basic web UI, no rich features, requires external client apps

3. Baïkal — CalDAV with a Friendly Admin Interface

Baïkal provides a lightweight CalDAV and CardDAV server with an easy-to-use web admin interface. It's based on the battle-tested sabre/dav library and offers a good balance between simplicity and manageability.

Key Features

• Web Admin Interface — Manage users and calendars through a browser
• CalDAV & CardDAV — Full support for calendars and contacts
• SQLite or MySQL — Flexible database options
• PHP-Based — Easy to host on any PHP-capable server
• User Management — Create and manage multiple user accounts
• iCal Import — Import existing calendars

Deployment

# docker-compose.yml for Baïkal
services:
  baikal:
    image: ckulka/baikal:nginx
    restart: unless-stopped
    ports:
      - "8080:80"
    volumes:
      - ./baikal-config:/var/www/baikal/config
      - ./baikal-data:/var/www/baikal/Specific

After starting, access the setup wizard at http://localhost:8080 to configure your instance.

Pros & Cons

✅ Pros: User-friendly admin, easy setup, solid sabre/dav foundation, flexible storage

❌ Cons: Limited features compared to full groupware, basic web interface

4. Easy!Appointments — Booking for Service Businesses

Easy!Appointments is designed for businesses that need to let customers book appointments. Think hair salons, medical practices, consultants, or any service-based business.

Key Features

• Multiple Service Types — Define different services with varying durations and prices
• Provider Management — Multiple staff members with their own schedules
• Customer Portal — Let customers book, reschedule, and cancel
• Working Hours — Set availability for each provider
• Break Times — Account for lunch breaks and unavailable periods
• Email Notifications — Automatic confirmations and reminders
• Google Calendar Sync — Two-way sync with Google Calendar

Deployment

# docker-compose.yml for Easy!Appointments
services:
  easyappointments:
    image: alextselegidis/easyappointments:latest
    restart: unless-stopped
    environment:
      BASE_URL: "https://appointments.yourdomain.com"
      DB_HOST: db
      DB_NAME: easyappointments
      DB_USERNAME: easyappt
      DB_PASSWORD: password
    ports:
      - "8080:80"
    depends_on:
      - db

  db:
    image: mysql:8.0
    restart: unless-stopped
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
      MYSQL_DATABASE: easyappointments
      MYSQL_USER: easyappt
      MYSQL_PASSWORD: password
    volumes:
      - ./mysql:/var/lib/mysql

Pros & Cons

✅ Pros: Purpose-built for service businesses, clean interface, multi-provider support

❌ Cons: Not a general calendar solution, limited customization

5. LibreBooking — Resource Scheduling

LibreBooking (formerly phpScheduleIt) focuses on resource scheduling — booking meeting rooms, equipment, vehicles, or any shared resources in an organization.

Key Features

• Resource Types — Define different categories of bookable resources
• Approval Workflows — Require admin approval for bookings
• Blackout Dates — Block resources during maintenance or holidays
• Quotas — Limit how much users can book
• Reports — Usage reports and analytics
• Mobile-Friendly — Responsive design for booking on the go

Deployment

# docker-compose.yml for LibreBooking
services:
  librebooking:
    image: librebooking/librebooking:latest
    restart: unless-stopped
    environment:
      LB_DB_HOST: db
      LB_DB_USER: librebooking
      LB_DB_PASSWORD: password
      LB_DB_NAME: librebooking
      LB_INSTALL_PASSWORD: admin123
    ports:
      - "8080:80"
    depends_on:
      - db

  db:
    image: mysql:8.0
    restart: unless-stopped
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword
      MYSQL_DATABASE: librebooking
      MYSQL_USER: librebooking
      MYSQL_PASSWORD: password
    volumes:
      - ./mysql:/var/lib/mysql

Pros & Cons

✅ Pros: Excellent for resource management, approval workflows, detailed reporting

❌ Cons: Focused on resources (not personal calendars), dated interface

6. Rallly — Modern Meeting Polls

Rallly is a beautiful, modern alternative to Doodle for scheduling meetings. It lets you create polls to find the best time for a group to meet.

Key Features

• Clean Modern UI — Beautiful, intuitive interface
• No Account Required — Participants can vote without signing up
• Time Zone Support — Automatically handles time zone conversion
• Comments — Participants can add notes to their responses
• Email Notifications — Get notified when people respond
• Free Forever — No premium tier, all features available

Deployment

# docker-compose.yml for Rallly
services:
  rallly:
    image: lukevella/rallly:latest
    restart: unless-stopped
    environment:
      DATABASE_URL: "postgresql://rallly:password@db:5432/rallly"
      SECRET_PASSWORD: "your-secret-password"
      NEXT_PUBLIC_BASE_URL: "https://rallly.yourdomain.com"
      SUPPORT_EMAIL: "[email protected]"
    ports:
      - "3000:3000"
    depends_on:
      - db

  db:
    image: postgres:15
    restart: unless-stopped
    environment:
      POSTGRES_DB: rallly
      POSTGRES_USER: rallly
      POSTGRES_PASSWORD: password
    volumes:
      - ./postgres:/var/lib/postgresql/data

Pros & Cons

✅ Pros: Beautiful UI, easy to use, no sign-up required for participants

❌ Cons: Only for scheduling polls (not a full calendar), limited features

Groupware Options with Calendars

If you need more than just calendars, consider full groupware solutions that include calendar functionality:

• Nextcloud — Includes CalDAV with the Calendar app, plus file sync, contacts, and more
• SOGo — Full groupware with CalDAV, CardDAV, and Microsoft Exchange compatibility
• Zimbra — Enterprise email and collaboration suite

Connecting to CalDAV Servers

Once you have a CalDAV server running (Radicale, Baïkal, or DAViCal), you can connect with standard calendar apps:

iOS/macOS

1. Go to Settings → Calendar → Accounts → Add Account
2. Select "Other" → "Add CalDAV Account"
3. Enter your server URL, username, and password

Android

1. Install DAVx⁵ from F-Droid or Google Play
2. Add a new account with your CalDAV URL
3. DAVx⁵ syncs with any Android calendar app

Thunderbird

1. Install the "Lightning" calendar add-on (built-in on newer versions)
2. New Calendar → On the Network → CalDAV
3. Enter your calendar URL

Which One Should You Choose?

Best Practices

Backup Your Calendars

• Radicale: Back up the collections folder (it's just .ics files)
• Baïkal: Back up the SQLite database or MySQL dump
• Cal.com: Back up the PostgreSQL database

Security Considerations

• Always use HTTPS — Calendar data is sensitive
• Strong passwords — CalDAV often exposes a public endpoint
• Limit access — Use firewall rules if possible
• Keep updated — Apply security patches promptly

Frequently Asked Questions

Can I sync my self-hosted calendar with Google Calendar?

Yes, but with limitations. You can export your Google Calendar and import it into CalDAV. For ongoing two-way sync, tools like Cal.com can connect to Google Calendar while you maintain control of booking data.

Will my iPhone work with these solutions?

Absolutely. iOS has built-in CalDAV support. Any CalDAV server (Radicale, Baïkal, DAViCal) works natively with iOS Calendar.

How much server resources do I need?

Radicale runs on almost anything (even a Raspberry Pi Zero). Baïkal needs basic PHP hosting. Cal.com and Rallly need more resources (1GB RAM minimum recommended).

Can I share calendars with family members?

Yes. CalDAV servers support shared calendars. Create a calendar with the right permissions, and family members can subscribe to it from their devices.

Final Thoughts

Self-hosting your calendar infrastructure gives you privacy, control, and independence from big tech companies. The options have matured significantly — from simple CalDAV servers to full-featured booking platforms.

My recommendations:

• For personal calendars: Radicale for simplicity, Baïkal for a web admin
• For booking pages: Cal.com — it's the Calendly killer
• For meeting scheduling: Rallly — clean, modern, and easy

Your schedule is yours. Keep it that way.