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Etebase (EteSync) logo

Alternatives to Etebase (EteSync)

Etebase (EteSync) is an end-to-end encrypted and journaled personal information server supporting calendar and contact data, offering its own clients. Built with Python/Django, it provides secure, private synchronization with zero-knowledge encryption for personal data. Find open source and proprietary alternatives that serve similar purposes.

License:AGPL-3.0
Stars:1,658
Difficulty:Medium
Pricing:Free
Hosting:Self-Hosted

Self-hosted alternatives to Etebase (EteSync)

Open source projects that can replace Etebase (EteSync):

Radicale logo

Radicale

3,756
GPL-3.0

Radicale is a beautifully simple calendar and contact server that prioritizes ease of use and minimal administrative overhead. Built with Python and designed for simplicity, it provides reliable CalDAV and CardDAV synchronization with virtually no configuration required, making it perfect for users who want calendar and contact sync without complexity.

Key Features

  • Extreme Simplicity & Ease of Use:

    • Minimal configuration requirements
    • Easy setup and installation process
    • Extremely low administrative overhead
    • Simple deployment and management
    • Straightforward operation and maintenance
    • User-friendly approach to server management

  • Comprehensive Protocol Support:

    • Full CalDAV protocol implementation
    • Complete CardDAV protocol support
    • WebDAV foundation for reliability
    • Standards-compliant implementation
    • Cross-platform compatibility with all clients
    • Industry-standard protocol adherence

  • Lightweight & Efficient Design:

    • Minimal resource usage and footprint
    • Fast performance and response times
    • Efficient operation and processing
    • Small memory and storage requirements
    • Quick startup and response
    • Optimized for simplicity and speed

  • Calendar Management:

    • Calendar synchronization across devices
    • Event management and scheduling
    • Multi-calendar support and organization
    • Recurring event support and handling
    • Time zone support and management
    • Calendar sharing capabilities

  • Contact Management:

    • Contact synchronization across devices
    • Address book support and management
    • Full vCard format compatibility
    • Contact group organization
    • Contact sharing and collaboration
    • Cross-device contact access

  • Technical Excellence:

    • Python-based for easy deployment
    • File-based storage for simplicity
    • Authentication system support
    • Security features and access controls
    • Cross-platform compatibility
    • Reliable and stable operation

  • Deployment Benefits:

    • Single-file deployment option
    • No database requirements
    • Minimal dependencies
    • Easy backup and migration
    • Version control friendly
    • Container-ready deployment

Technical Specifications

  • Language: Python
  • License: GPL-3.0
  • Deployment: Python application, deb package
  • Platforms: Cross-platform (Linux, macOS, Windows)
  • Requirements: Python (minimal dependencies)
  • Storage: File-based (no database required)
  • Architecture: Simple Python web server

Use Cases

  • Personal Calendar & Contacts: Individual calendar and contact synchronization
  • Small Teams: Simple team calendar and contact sharing
  • Minimal Setup Environments: Situations requiring minimal configuration
  • Embedded Systems: Lightweight calendar/contact sync for embedded devices
  • Development & Testing: Quick setup for development and testing
  • Privacy-Focused Users: Simple self-hosted alternative to cloud services

Unique Advantages

  • Extreme Simplicity: Minimal configuration and administrative overhead
  • Lightweight: Minimal resource usage with maximum functionality
  • File-Based: No database requirements, simple file storage
  • Easy Deployment: Single-file deployment with minimal dependencies
  • Python-Based: Easy to understand, modify, and extend
  • Open Source: Transparent, customizable, and community-driven

Based on the Radicale GitHub repository, this tool provides users with the simplest possible CalDAV and CardDAV server that excels in ease of use and minimal overhead, making it ideal for individuals and small teams who want reliable calendar and contact synchronization with virtually no setup or maintenance requirements.

Baïkal logo

Baïkal

2,739
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.

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.

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