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Backup · head to head

Kopia vs Veeam Kasten for Kubernetes

Kopia logo

Kopia

Backup

Open source deduplicating backup with client side encryption and a repository on almost any storage

From
Free
Rated
-
Full reviewWebsite
Veeam Kasten for Kubernetes logo

Veeam Kasten for Kubernetes

Backup

Kubernetes-native backup, disaster recovery and application mobility

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kopia space is only reclaimed when maintenance runs, and in a shared repository full maintenance is owned by one client, so if that machine goes away the repository grows for ever while every backup still reports success.; Veeam Kasten for Kubernetes licensing is per worker node, so clusters designed with many small nodes for scheduling flexibility pay considerably more than the same capacity in fewer large nodes.
  • They diverge on capability: Kopia covers Content defined chunking, Veeam Kasten for Kubernetes covers Application-aware capture.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Kopia and Veeam Kasten for Kubernetes actually diverge.

Attributes where Kopia and Veeam Kasten for Kubernetes differ
AttributeKopiaVeeam Kasten for Kubernetes
Pricing modelOpen source, no licence feePer worker node
PlatformsLinux, macOS, Windows, DockerKubernetes, Linux

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Backup).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Kopia

  • Content defined chunking
  • Global deduplication
  • Pack blobs
  • Client side encryption
  • Desktop and command line
  • Repository verification

Only in Veeam Kasten for Kubernetes

  • Application-aware capture
  • Policy engine
  • Immutable targets
  • Restore transformation
  • Database hooks
  • Ransomware detection

What people use each for

The jobs each tool is most often brought in to do.

Kopia

  • Backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron jobnot Veeam Kasten for Kubernetes
  • Deduplicating backups of several similar machines into one repository so common content is stored oncenot Veeam Kasten for Kubernetes
  • Replacing a chunk based tool whose per object charges made a cheap bucket expensivenot Veeam Kasten for Kubernetes
  • Keeping an encrypted offsite copy where the storage provider must never be able to read the contentsnot Veeam Kasten for Kubernetes

Veeam Kasten for Kubernetes

  • A platform team that must prove to auditors it can restore a production namespace, not just its disksnot Kopia
  • Migrating a stateful application from on-premises OpenShift to a managed cloud Kubernetes servicenot Kopia
  • Protecting Kubernetes workloads to an immutable object store so ransomware cannot delete the backupsnot Kopia
  • A team using operators and custom resources that volume-snapshot tools silently fail to capturenot Kopia

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Kopia

  • Space is only reclaimed when maintenance runs, and in a shared repository full maintenance is owned by one client, so if that machine goes away the repository grows for ever while every backup still reports success.
  • The repository format has changed across versions and mixing client versions against one repository is discouraged, so a fleet must be upgraded together rather than machine by machine.
  • There is no central orchestration or reporting for many machines, so monitoring a fleet means building your own alerting around exit codes.
  • Restoring many small files is slower than the backup was, because content must be reassembled from pack blobs, and this is rarely tested until the day it matters.
  • Encryption is client side with no escrow, so a lost repository password means the data is unrecoverable and there is no vendor to appeal to.

Veeam Kasten for Kubernetes

  • Licensing is per worker node, so clusters designed with many small nodes for scheduling flexibility pay considerably more than the same capacity in fewer large nodes.
  • The free Starter edition is scale limited and community supported, so it works for evaluation and small clusters but there is no gentle upgrade path when production grows past the limit.
  • Backup performance depends on the underlying CSI driver snapshot capability, so on storage without proper CSI snapshot support it falls back to slower generic copying.
  • Restores into a different cluster need matching custom resource definitions and operator versions present beforehand, so cross-cluster mobility is less automatic than the marketing suggests.
  • Kasten protects Kubernetes only, so organisations with mixed virtual machine and container estates run it alongside a separate backup product and manage two retention policies and two sets of evidence.

Pricing, plan by plan

Kopia

Free
  • KopiaFree
    • Full functionality, no data limit
    • Desktop application included
    • Any supported storage back end

Veeam Kasten for Kubernetes

Free
  • StarterFree
    • Functionally the same as Enterprise
    • Limited on scale and support
    • Intended for evaluation and small non-production clusters
  • Enterprise$undefined/year
    • Licensed per worker node, quoted annually
    • Available through AWS, Azure and Google Cloud marketplaces
    • Vendor support with SLAs

Which should you pick?

Choose Kopia if

  • You need content defined chunking.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker.
  • You also want global deduplication.
Kopia review

Choose Veeam Kasten for Kubernetes if

  • You need application-aware capture.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want policy engine.
Veeam Kasten for Kubernetes review

Questions people ask

Is Kopia or Veeam Kasten for Kubernetes better?
Neither clearly leads. Kopia starts at Free and Veeam Kasten for Kubernetes at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kopia or Veeam Kasten for Kubernetes?
Kopia starts at Free and Veeam Kasten for Kubernetes at Free.
Does Kopia or Veeam Kasten for Kubernetes run on more platforms?
Kopia runs on Linux, macOS, Windows, Docker. Veeam Kasten for Kubernetes runs on Kubernetes, Linux.
Can I use Kopia for free?
Both have a free tier, so you can try either at no cost before committing.
What is Kopia best used for?
Kopia is most often used for backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job, deduplicating backups of several similar machines into one repository so common content is stored once, replacing a chunk based tool whose per object charges made a cheap bucket expensive, keeping an encrypted offsite copy where the storage provider must never be able to read the contents. Of those, backing up laptops and workstations to cheap object storage with a desktop interface rather than a cron job and deduplicating backups of several similar machines into one repository so common content is stored once are not what Veeam Kasten for Kubernetes is typically brought in for.
What can Kopia do that Veeam Kasten for Kubernetes cannot?
Kopia covers Content defined chunking, Global deduplication, Pack blobs, Client side encryption. Veeam Kasten for Kubernetes covers Application-aware capture, Policy engine, Immutable targets, Restore transformation.

Answered from the vendors’ own pages

Kopia: Is a partly corrupt repository still restorable?

Partly. Deduplication means one damaged pack blob affects every snapshot referencing its contents, but unaffected files still restore. Run verification regularly rather than assuming.

Veeam Kasten for Kubernetes: Is Kasten K10 still a product?

It is now sold as Veeam Kasten for Kubernetes. The kasten.io domain redirects to Veeam and the documentation still lives at docs.kasten.io.

Kopia: How does it compare with restic?

Similar guarantees, with packing that behaves better on per operation billing, a desktop interface, and compression enabled by default.

Veeam Kasten for Kubernetes: Is there a free edition?

Yes, the Starter edition is free and functionally complete but limited on scale and support, aimed at evaluation and small non-production clusters.

Kopia: Do I need to run maintenance manually?

It is scheduled automatically by default, but you must ensure the client that owns full maintenance keeps running, otherwise deleted snapshots never free space.

Veeam Kasten for Kubernetes: How is Enterprise licensed?

Per worker node. Count your nodes, not your capacity, before comparing quotes, because node sizing directly changes the price.

Kopia: Can several machines share one repository?

Yes, and that is where deduplication pays off, but they should run compatible versions and only one owns full maintenance.

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