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Cloud · head to head

VictoriaMetrics vs Skopeo

VictoriaMetrics logo

VictoriaMetrics

Cloud

Fast, cost-effective time series database for metrics

From
Free
Rated
-
Full reviewWebsite
Skopeo logo

Skopeo

Cloud

Inspect, copy and sign container images without pulling them

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: VictoriaMetrics promQL compatibility is very close but not identical, and MetricsQL extensions do not port back; Skopeo single-purpose: it neither builds nor runs images, so it is one tool in a chain rather than a solution
  • They diverge on capability: VictoriaMetrics covers PromQL compatible, Skopeo covers Remote inspection.

Where they differ

Only the attributes on which VictoriaMetrics and Skopeo actually diverge.

Attributes where VictoriaMetrics and Skopeo differ
AttributeVictoriaMetricsSkopeo
PlatformsLinux, Docker, Kubernetes, Self-hostedLinux, macOS

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated), category (Cloud).

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 VictoriaMetrics

  • PromQL compatible
  • Low resource use
  • Single binary or cluster
  • Remote write target

Only in Skopeo

  • Remote inspection
  • Registry-to-registry copy
  • Format conversion
  • Image signing

What people use each for

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

VictoriaMetrics

  • Keeping months or years of Prometheus metrics without the memory costnot Skopeo
  • High-cardinality metrics where Prometheus strugglesnot Skopeo
  • Consolidating metrics from many Prometheus instances into one queryable storenot Skopeo

Skopeo

  • Promoting images between staging and production registries without a round tripnot VictoriaMetrics
  • Inspecting an image’s contents before deciding to deploy itnot VictoriaMetrics
  • Mirroring images into an air-gapped or internal registrynot VictoriaMetrics

Where each one falls short

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

VictoriaMetrics

  • PromQL compatibility is very close but not identical, and MetricsQL extensions do not port back
  • Smaller community than Prometheus, so fewer guides and third-party integrations
  • The clustered version has meaningfully more moving parts than the single binary suggests
  • Some enterprise features sit outside the open-source offering

Skopeo

  • Single-purpose: it neither builds nor runs images, so it is one tool in a chain rather than a solution
  • Command syntax with transport prefixes such as docker:// is unusual and trips people up initially
  • Documentation is sparse compared with the rest of the container ecosystem

Pricing, plan by plan

VictoriaMetrics

Free
  • VictoriaMetricsFree
    • Full functionality
    • No data limits
    • Community support

Skopeo

Free
  • SkopeoFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose VictoriaMetrics if

  • You need promql compatible.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want low resource use.
VictoriaMetrics review

Choose Skopeo if

  • You need remote inspection.
  • You want to start without paying.
  • You work on Linux, macOS.
  • You also want registry-to-registry copy.
Skopeo review

Questions people ask

Is VictoriaMetrics or Skopeo better?
Neither clearly leads. VictoriaMetrics starts at Free and Skopeo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, VictoriaMetrics or Skopeo?
VictoriaMetrics starts at Free and Skopeo at Free.
Does VictoriaMetrics or Skopeo run on more platforms?
VictoriaMetrics runs on Linux, Docker, Kubernetes, Self-hosted. Skopeo runs on Linux, macOS.
Can I use VictoriaMetrics for free?
Both have a free tier, so you can try either at no cost before committing.
What is VictoriaMetrics best used for?
VictoriaMetrics is most often used for keeping months or years of prometheus metrics without the memory cost, high-cardinality metrics where prometheus struggles, consolidating metrics from many prometheus instances into one queryable store. Of those, keeping months or years of prometheus metrics without the memory cost and high-cardinality metrics where prometheus struggles are not what Skopeo is typically brought in for.
What can VictoriaMetrics do that Skopeo cannot?
VictoriaMetrics covers PromQL compatible, Low resource use, Single binary or cluster, Remote write target. Skopeo covers Remote inspection, Registry-to-registry copy, Format conversion, Image signing.

Answered from the vendors’ own pages

VictoriaMetrics: Is VictoriaMetrics free?

The open-source version is free with no data limits. An enterprise edition and cloud service are paid.

Skopeo: Is Skopeo free?

Yes, open source with no licence fee.

VictoriaMetrics: Does it replace Prometheus?

It can, but most teams keep Prometheus for scraping and use VictoriaMetrics as the long-term store behind it.

Skopeo: Why copy images without pulling them?

A registry-to-registry copy avoids downloading and re-uploading gigabytes, which is faster and much cheaper on bandwidth in CI.

VictoriaMetrics: Is PromQL fully supported?

Very nearly. It implements PromQL and extends it with MetricsQL, though a small number of edge-case behaviours differ.

Skopeo: Can Skopeo run containers?

No. It only inspects, copies, signs and deletes images. Running them is Podman’s or Docker’s job.

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