Top 10 Best Data Deduplication Software of 2026

BorgBackup is a powerful, open-source deduplicating backup tool designed for efficient data storage and retrieval. It uses content-defined chunking to store only unique data blocks across multiple backups, achieving high deduplication ratios while supporting compression, authenticated encryption, and remote repositories over SSH. Users can create, mount, and prune archives with fine-grained control, making it ideal for long-term archiving and incremental backups.

Restic is an open-source backup tool specializing in efficient data deduplication, encryption, and incremental backups to diverse storage backends like local disks, S3, SFTP, and more. It uses content-defined chunking to eliminate redundancies across snapshots and multiple clients, minimizing storage usage while ensuring data integrity. With built-in encryption and snapshot pruning, it's designed for secure, long-term data protection without vendor lock-in.

Duplicacy is a cross-platform backup solution that excels in data deduplication through content-defined chunking, ensuring only unique data segments are stored to minimize redundancy and storage costs. It supports a wide array of backends including local storage, S3-compatible services, Google Cloud, Dropbox, and more, with built-in encryption, compression, and snapshot management. Its lock-free architecture allows multiple clients to back up simultaneously without conflicts, making it ideal for distributed environments. The tool offers both CLI and a web-based GUI for management.

Kopia is an open-source backup and restore tool designed for efficient data management, featuring advanced client-side deduplication, compression, and encryption to minimize storage usage. It supports snapshots, versioning, and a wide array of storage backends including local disks, S3-compatible services, Google Cloud, Azure, SFTP, and more via RClone compatibility. Kopia excels in creating fast, incremental backups with content-defined chunking that detects and eliminates duplicate data blocks across files and versions.

Duplicati is a free, open-source backup software focused on secure, efficient data backups through block-level deduplication, which eliminates redundant data chunks to save storage space. It supports incremental backups, strong AES-256 encryption, and compression, making it suitable for backing up to local drives, NAS, or cloud services like Google Drive, OneDrive, Dropbox, and S3-compatible storage. Cross-platform compatibility ensures it works on Windows, macOS, and Linux, with a web-based interface for management.

OpenDedup SDFS is an open-source, Linux-based deduplication file system that provides block-level, inline data deduplication to achieve high storage efficiency. It supports compression, encryption, thin provisioning, and replication, while exporting storage via SMB/CIFS, NFSv4, and iSCSI protocols. Ideal for backup, archival, and primary storage, it integrates with local disks, cloud storage like S3, and offers a REST API for management.

Veeam Backup & Replication is a leading backup and disaster recovery solution that incorporates robust data deduplication to minimize storage requirements across virtual, physical, and cloud environments. It employs both source-side and target-side deduplication, along with compression, to achieve high reduction ratios during backups and replications. The software excels in VMware and Hyper-V environments, integrating deduplication seamlessly into its scale-out backup repositories (SOBR) for optimized long-term retention.

Veritas NetBackup is a comprehensive enterprise backup and recovery platform that incorporates advanced data deduplication capabilities through its Media Server Deduplication Pool (MSDP) and optimized duplication features. It reduces storage requirements by identifying and eliminating redundant data blocks across backups, supporting both inline and post-process deduplication for efficient data management. The solution integrates with cloud, virtual, and physical environments, enabling scalable protection for large-scale data centers.

Commvault Complete Data Protection is an enterprise-grade data management platform that provides comprehensive backup, recovery, and data protection across on-premises, cloud, and hybrid environments. Its deduplication technology, including DASH (Deduplication Accelerated Stream Handling), optimizes storage by eliminating redundant data at source and target levels with high ratios. The solution integrates cyber resilience features like immutable storage and AI-driven threat detection to safeguard deduplicated backups.

Rubrik is an enterprise data resilience platform that incorporates advanced data deduplication to eliminate redundant data blocks, achieving high storage efficiency ratios across on-premises, cloud, and hybrid environments. It integrates deduplication with backup, recovery, archiving, and cyber threat protection features for comprehensive data management. Designed for scale, it supports diverse workloads like VMs, databases, Kubernetes, and SaaS applications while optimizing storage costs.