Duplicati is a self-hosted backup server designed to perform encrypted, incremental, and compressed backups to a wide range of local, network, and cloud-based storage providers. It functions as a background service that automates recurring data protection tasks, ensuring that only changed data blocks are stored to maximize efficiency and minimize bandwidth usage.
The project distinguishes itself through a centralized management console that allows for the orchestration of multiple distributed backup agents from a single web-based dashboard. It supports multi-tenant management, enabling the organization of users and resources into hierarchical structures for delegated access and data isolation. Furthermore, it provides robust security features, including AES-256 encryption for data at rest, support for OIDC and SAML2 authentication, and provider-level immutability protections to prevent unauthorized modification of backup archives.
Beyond its core backup capabilities, the system includes comprehensive tools for data lifecycle management, such as automated retention policies, versioning, and integrity verification. It offers flexible configuration through both a graphical interface and a command-line utility, supporting automation scripting and dry-run simulations to verify workflows before execution. The software also handles complex environments by managing locked files and providing metadata indexing to ensure rapid restoration even if the primary configuration database is unavailable.
Duplicati is available through various installation formats, including native system packages, portable archives, and containerized deployments, allowing it to run in diverse operating environments.
