Plakar
Plakar is the open backup platform enabling resilience-as-code for security and infrastructure teams. A declarative last line of defense built around Kloset, an immutable encrypted deduplication engine that collapses the encryption-vs-efficiency tradeoff and makes complete coverage affordable, paired with a Kubernetes-native control plane that lets teams define, orchestrate, and verify resilience policies as code across VMs, databases, K8s workloads, object storage, and AI pipelines. When ransomware hits, an AI agent breaks production, or you need to walk away from a cloud provider, your data stays portable and recoverable. Plakar runs a zero-trust resilience layer on infrastructure you own — declaratively governed, agent-ready, and priced so complete coverage is actually achievable. Your keys. Your data. Your recovery path.
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Kopia
With a secure, scalable architecture, Kopia can back up everything from small laptops to large servers today. Kopia is a fast and secure open-source backup/restore tool that manages filesystem snapshots in a remote storage. Kopia uploads directories and files to remote storage called Repository and maintains a set of historical point-in-time snapshot records based on defined policies. Each snapshot is always incremental, no data included in previous snapshots is ever re-uploaded to the repository based on file content. After moving or renaming even large files, Kopia can recognize that they have the same content and won’t need to upload them again. Multiple users or computers can share same repository: if users share the same files, they are also uploaded only once. To restore data, Kopia can mount the contents of a Repository as a local disk, and you can use normal file copy tools to perform full or selective restore.
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Borg
Deduplicating archiver with compression and encryption. BorgBackup (short Borg) gives you space-efficient storage of backups. Secure, authenticated encryption. Compression, LZ4, zlib, LZMA, zstd (since borg 1.1.4). Mountable backups with FUSE. Easy installation on multiple platforms, Linux, macOS, BSD. Free software (BSD license). Backed by a large and active open source community. Optionally, it supports compression and authenticated encryption. The main goal of Borg is to provide an efficient and secure way to backup data. The data deduplication technique used makes Borg suitable for daily backups since only changes are stored. The authenticated encryption technique makes it suitable for backups to not fully trusted targets. Deduplication based on content-defined chunking is used to reduce the number of bytes stored: each file is split into a number of variable length chunks and only chunks that have never been seen before are added to the repository.
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Barracuda Cloud-to-Cloud Backup
Find and recover the exact data you want quickly and easily with a newly redesigned user interface that is accessible from anywhere with an internet connection. Microsoft recommends that you use third-party backup for your Office 365 data. Barracuda Cloud-to-Cloud Backup offers fast backups, highly granular restore capabilities, and unmatched ease of use. Back up all your Teams, Exchange, SharePoint, and OneDrive data, and choose full or granular restore depending on your specific needs. Your Office 365 data is already in the cloud, saving secure, encrypted backups in the same network means better performance and instant scalability. Barracuda Cloud-to-Cloud Backup gives you the flexibility to restore Teams, Exchange, SharePoint, and OneDrive data either fully or with highly granular detail. Full SharePoint support means you can backup and restore everything in SharePoint including different site templates, custom lists, permissions, and metadata.
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