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Backup · head to head

Restic vs Rook

Restic logo

Restic

Backup

Fast, secure, and efficient backup program

From
Free
Rated
-
Full reviewWebsite
Rook logo

Rook

Cloud

Kubernetes operator that deploys and manages Ceph storage clusters

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Restic cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag; Rook rook automates Ceph but does not abstract it, so an incident still demands Ceph expertise, and organisations without it end up hiring consultants at exactly the wrong moment.
  • They diverge on capability: Restic covers Content-defined chunking, Rook covers Ceph operator.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Restic and Rook actually diverge.

Attributes where Restic and Rook differ
AttributeResticRook
Pricing modelfreeOpen source, no licence fee
PlatformsWindows, Mac, LinuxLinux, Kubernetes
CategoryBackupCloud
Founded2014Unknown

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

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 Restic

  • Content-defined chunking
  • Cryptographic verification
  • Deduplication
  • Encryption
  • Multiple backends
  • Snapshot management
  • AWS S3
  • Azure

Only in Rook

  • Ceph operator
  • Block, file and object
  • Erasure coding
  • CSI driver
  • Automated upgrades
  • Multi-cluster mirroring

What people use each for

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

Restic

  • Encrypted deduplicated backups to S3, B2, SFTP and local disk from the command linenot Rook
  • Scripted server backups with snapshot retention policiesnot Rook

Rook

  • An on-premises Kubernetes platform needing block, shared filesystem and S3 storage without buying three productsnot Restic
  • A team that already runs Ceph and wants its lifecycle managed declaratively inside Kubernetesnot Restic
  • A large cluster where three-way replication overhead is unaffordable and erasure coding is requirednot Restic
  • An organisation building a private cloud that cannot use managed cloud storage services for residency reasonsnot Restic

Where each one falls short

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

Restic

  • Cold storage is not natively supported; restoring from S3 Glacier and S3 Glacier Deep Archive is only available as an experimental feature behind a feature flag
  • A Windows file whose name contains a character Windows treats as invalid cannot be read by restic and has to be renamed
  • Antivirus real-time protection degrades performance on Windows unless the restic binary is added to an exclusions list
  • On large repositories the built-in five minute stuck-request timeout fires during file listing and has to be raised manually with --stuck-request-timeout

Rook

  • Rook automates Ceph but does not abstract it, so an incident still demands Ceph expertise, and organisations without it end up hiring consultants at exactly the wrong moment.
  • There is no vendor and no SLA; the realistic commercial support routes are IBM Red Hat OpenShift Data Foundation or an independent Ceph consultancy, both of which change the cost picture entirely.
  • Ceph is resource hungry, needing substantial memory and dedicated disks per OSD, so the hardware cost of a properly sized cluster is often underestimated.
  • Recovery and rebalancing after a disk or node failure generates heavy background input and output that can degrade application performance for hours, which surprises teams sizing for steady state.
  • Minimum viable clusters require several nodes with several disks each, so it is impractical at small scale and the entry hardware cost exceeds simpler alternatives.

Pricing, plan by plan

Restic

Free
  • FreeFree
    • Content-defined chunking
    • Encryption
    • Multiple backends

Rook

Free
  • RookFree
    • Apache 2.0 licensed, no licence fee
    • Graduated CNCF project
    • Community support via GitHub and Slack only

Which should you pick?

Choose Restic if

  • You need content-defined chunking.
  • You want to start without paying.
  • You work on Windows, Mac, Linux.
  • You also want cryptographic verification.
Restic review

Choose Rook if

  • You need ceph operator.
  • You want to start without paying.
  • You work on Linux, Kubernetes.
  • You also want block, file and object.
Rook review

Questions people ask

Is Restic or Rook better?
Neither clearly leads. Restic starts at Free and Rook at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Restic or Rook?
Restic starts at Free and Rook at Free.
Does Restic or Rook run on more platforms?
Restic runs on Windows, Mac, Linux. Rook runs on Linux, Kubernetes.
Can I use Restic for free?
Both have a free tier, so you can try either at no cost before committing.
What is Restic best used for?
Restic is most often used for encrypted deduplicated backups to s3, b2, sftp and local disk from the command line, scripted server backups with snapshot retention policies. Of those, encrypted deduplicated backups to s3, b2, sftp and local disk from the command line and scripted server backups with snapshot retention policies are not what Rook is typically brought in for.
What can Restic do that Rook cannot?
Restic covers Content-defined chunking, Cryptographic verification, Deduplication, Encryption. Rook covers Ceph operator, Block, file and object, Erasure coding, CSI driver.

Answered from the vendors’ own pages

Restic: How much does restic cost?

Restic is entirely free to use and completely open source. There are no subscription tiers, paid plans, or licensing costs.

Source
Rook: Who supports it in production?

Nobody by default. IBM sells Red Hat OpenShift Data Foundation, which is supported Rook and Ceph, and independent consultancies sell Ceph support. Decide this before deployment.

Rook: Does it need Ceph knowledge?

Yes. Rook handles deployment and routine operations, but troubleshooting a degraded cluster is a Ceph skill and there is no way around it.

Rook: Can it replace an object storage appliance?

Functionally yes, through the RADOS gateway, but you take on the operations that an appliance vendor would otherwise carry.

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