Alternatives to Radicale

Baïkal

2,797

GPL-3.0

Baïkal is a lightweight, efficient CalDAV and CardDAV server built on the robust sabre/dav framework. Designed for simplicity and ease of use, it provides seamless calendar and contact synchronization across all your devices with minimal administrative overhead and straightforward setup.

Key Features

Comprehensive Protocol Support:
- Full CalDAV protocol implementation for calendar sync
- Complete CardDAV protocol support for contacts
- WebDAV foundation for reliable data exchange
- Standards-compliant implementation
- Cross-platform compatibility with all major clients
- Industry-standard protocol adherence
Advanced Calendar Management:
- Multi-calendar support and organization
- Event synchronization across all devices
- Recurring event support and management
- Calendar sharing and collaboration
- Time zone handling and support
- Event reminders and notifications
Comprehensive Contact Management:
- Contact synchronization across devices
- Multiple address book support
- Contact group organization
- Full vCard format support
- Contact sharing capabilities
- Advanced contact field support
Universal Device Compatibility:
- Native iOS calendar and contacts integration
- Android device support and synchronization
- Desktop client compatibility (Thunderbird, Evolution)
- Web browser access and management
- Cross-platform synchronization
- Standard client support
Simple Administration:
- Clean web-based admin interface
- User management and permissions
- Simple configuration and setup
- Minimal maintenance requirements
- Easy installation process
- Intuitive administrative controls
Technical Excellence:
- Lightweight and efficient design
- PHP-based for easy deployment
- Database support (MySQL, PostgreSQL, SQLite)
- Security features and access controls
- Performance optimization
- Reliable operation and stability
Self-Hosting Benefits:
- Complete data ownership and control
- Privacy-focused calendar and contact management
- No external dependencies or cloud services
- Custom configuration and policies
- Independence from third-party services
- Enhanced security and privacy

Technical Specifications

Language: PHP
License: GPL-3.0
Deployment: Web server, PHP
Platforms: Cross-platform (web-based)
Requirements: PHP, web server, database
Database: MySQL, PostgreSQL, SQLite
Architecture: PHP web application based on sabre/dav

Use Cases

Personal Calendar & Contacts: Individual calendar and contact synchronization
Small Team Collaboration: Team calendar sharing and contact management
Family Organization: Family calendar and contact synchronization
Business Scheduling: Small business calendar and contact management
Cross-Device Sync: Unified calendar/contacts across multiple devices
Privacy-Focused Users: Self-hosted alternative to cloud services

Unique Advantages

Lightweight Design: Minimal resource usage with maximum functionality
sabre/dav Foundation: Built on proven, robust WebDAV framework
Easy Setup: Simple installation and configuration process
Standards Compliant: Full CalDAV/CardDAV protocol compliance
Universal Compatibility: Works with all major calendar and contact clients
Open Source: Transparent, customizable, and community-driven

Based on the Baïkal GitHub repository, this tool provides users with a lightweight, reliable CalDAV and CardDAV server that excels in simplicity and compatibility, making it ideal for individuals and small teams who want self-hosted calendar and contact synchronization with minimal setup and maintenance requirements.

SabreDAV

1,634

BSD-3-Clause

SabreDAV is a powerful, comprehensive framework and server that provides the foundation for building WebDAV, CalDAV, and CardDAV applications. Built with PHP and designed for developers, it offers standards-compliant protocol implementations and extensive customization capabilities for creating sophisticated synchronization solutions.

Key Features

Comprehensive Protocol Support:
- Complete WebDAV protocol implementation
- Full CalDAV protocol support for calendars
- CardDAV protocol for contact synchronization
- Standards-compliant implementations
- Protocol extensions and advanced features
- Industry-standard compliance and compatibility
Robust Framework Architecture:
- Modular PHP framework design
- Extensible and customizable architecture
- Plugin system for additional functionality
- Developer-friendly APIs and interfaces
- Object-oriented design patterns
- Clean, maintainable codebase
Advanced Calendar Management:
- Comprehensive calendar management capabilities
- Event synchronization and scheduling
- Full iCalendar format support
- Recurring event support and handling
- Time zone management and conversion
- Calendar sharing and collaboration
Contact Management Excellence:
- Complete contact management system
- Full vCard format support and compatibility
- Address book management and organization
- Contact group support and management
- Contact synchronization across devices
- Advanced contact field support
File Synchronization & Management:
- WebDAV file synchronization capabilities
- File access and management through WebDAV
- File sharing and collaboration features
- Version control and file history
- File locking and concurrent access control
- Advanced file management operations
Developer-Centric Features:
- Comprehensive APIs for custom development
- Plugin development framework
- Custom extension capabilities
- Extensive documentation and guides
- Testing framework and tools
- Community support and resources
Enterprise-Ready Capabilities:
- Scalable architecture for large deployments
- Performance optimization and tuning
- Security features and access controls
- Authentication and authorization systems
- Multi-tenant support capabilities
- Professional deployment options

Technical Specifications

Language: PHP
License: MIT
Deployment: PHP framework/library
Platforms: Cross-platform (web-based)
Requirements: PHP, web server
Database: Various (configurable)
Architecture: PHP framework with modular design

Use Cases

Custom Calendar Applications: Building specialized calendar and scheduling applications
Contact Management Systems: Developing custom contact and address book solutions
File Synchronization Services: Creating WebDAV-based file sync applications
Enterprise Integration: Integrating calendar/contact sync into existing systems
SaaS Applications: Building multi-tenant calendar and contact services
Mobile App Backends: Providing sync services for mobile applications

Unique Advantages

Comprehensive Framework: Complete WebDAV/CalDAV/CardDAV implementation
Standards-Compliant: Full compliance with industry standards and protocols
Developer-Friendly: Extensive APIs and documentation for custom development
Modular Design: Flexible, extensible architecture for customization
Proven Foundation: Used by many popular calendar and contact applications
Open Source: Transparent, customizable, and community-driven

Based on the SabreDAV GitHub repository, this tool provides developers and organizations with a comprehensive, standards-compliant framework for building sophisticated calendar, contact, and file synchronization applications, making it ideal for developers who need a robust foundation for custom WebDAV/CalDAV/CardDAV solutions with extensive customization capabilities and enterprise-ready features.

DAViCal

Unknown

DAViCal is a robust, enterprise-ready CalDAV server that leverages PostgreSQL as its data store to provide reliable calendar sharing and management. Built with PHP and designed for organizations, it offers advanced features, scalability, and the reliability of PostgreSQL for mission-critical calendar operations.

Key Features

Enterprise-Grade CalDAV Protocol:
- Complete CalDAV protocol implementation
- Standards-compliant calendar synchronization
- Cross-platform compatibility with all major clients
- Protocol extensions and advanced features
- Reliable calendar data exchange
- Industry-standard compliance
PostgreSQL Database Foundation:
- PostgreSQL backend for data reliability
- ACID compliance for data integrity
- Scalable storage architecture
- Advanced query capabilities
- Database-level security and backup
- Enterprise-grade data management
Advanced Calendar Management:
- Multi-calendar support and organization
- Sophisticated calendar sharing capabilities
- Granular access control and permissions
- Comprehensive event management
- Recurring event support and handling
- Calendar delegation and management
Enterprise Features & Administration:
- Comprehensive user management system
- Group-based permissions and access control
- Administrative web interface
- Scalability for large organizations
- Performance optimization and tuning
- Enterprise-ready deployment options
Security & Access Control:
- Multiple authentication system support
- Fine-grained access controls
- Security features and protocols
- User permission management
- Data protection and privacy
- Secure calendar sharing
Universal Client Integration:
- Desktop client compatibility (Thunderbird, Evolution)
- Mobile device support (iOS, Android)
- Web-based calendar interface
- Third-party application integration
- Standard CalDAV client support
- Cross-platform synchronization
Professional Deployment:
- Enterprise deployment capabilities
- High availability configurations
- Performance monitoring and optimization
- Backup and disaster recovery
- Professional support options
- Scalable architecture design

Technical Specifications

Language: PHP
License: GPL-2.0
Deployment: Web server, PHP, deb package
Platforms: Cross-platform (web-based)
Requirements: PHP, PostgreSQL, web server
Database: PostgreSQL (required)
Architecture: PHP web application with PostgreSQL backend

Use Cases

Enterprise Organizations: Large organizations requiring robust calendar sharing
Educational Institutions: Schools and universities with complex scheduling needs
Government Agencies: Government organizations with security requirements
Healthcare Systems: Medical facilities with critical scheduling requirements
Professional Services: Law firms, consulting companies with team coordination
Non-Profit Organizations: NGOs and non-profits with collaborative scheduling

Unique Advantages

PostgreSQL Reliability: Enterprise-grade database backend for data integrity
Enterprise-Ready: Designed for large-scale organizational deployment
Robust Architecture: Proven reliability for mission-critical calendar operations
Advanced Features: Sophisticated calendar sharing and access control
Scalable Design: Handles large numbers of users and calendars
Open Source: Transparent, auditable, and customizable

Based on the DAViCal GitLab repository, this tool provides organizations with an enterprise-grade CalDAV server that excels in reliability, scalability, and advanced features, making it ideal for large organizations, educational institutions, and enterprises that require robust calendar sharing with PostgreSQL's reliability and advanced administrative capabilities.