A lock-free deduplication cloud backup tool enabling multiple computers to back up concurrently to the same storage.
Duplicacy is a cloud backup tool that uses a lock-free deduplication algorithm to enable multiple computers to back up to the same storage concurrently. It solves the problem of inefficient, locked, or error-prone backups by allowing cross-computer deduplication without direct communication, making cloud storage act as a deduplication-aware server.
System administrators, DevOps engineers, and individuals needing reliable, performant backups across multiple machines to various cloud or local storage backends.
Developers choose Duplicacy for its unique lock-free approach, which supports concurrent backups from multiple computers to the same storage with real deduplication, extensive cloud support, and high performance compared to alternatives.
A new generation cloud backup tool
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Enables multiple machines to back up to the same storage simultaneously without locks, facilitating cross-computer deduplication as described in the Lock-Free Deduplication wiki.
Stores each chunk independently using its hash as the filename, eliminating centralized databases for simpler implementation and enabling features like asymmetric encryption.
Shown to outperform other backup tools like restic and duplicity in speed tests, as evidenced by the benchmarking results backing up the Linux code base.
Supports a wide range of backends including S3, B2, Google Drive, and OneDrive, making it versatile for various cloud and local storage options.
Offers erasure coding for resilience and RSA encryption for enhanced security, going beyond basic backup tools.
Requires per-computer licenses at $50 per year for non-trial commercial use, which can become expensive for large-scale deployments.
Core functionality is CLI-based, and while a GUI frontend exists, it is separate and may require additional setup or lack some advanced features.
As a newer project compared to alternatives like duplicity, it has fewer community contributions, integrations, and plugins, which might limit customization.
Some supported storages like WebDAV are listed as under beta testing, potentially leading to instability or incomplete features in those areas.