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Cybersecurity · head to head

Chainguard vs Packer

Chainguard logo

Chainguard

Cybersecurity

Secure-by-default open source software with hardened container images and libraries

From
Free
Rated
-
Full reviewWebsite
Packer logo

Packer

Cloud

Build automated machine images

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Chainguard containers Catalog at 19,000 USD/year expensive for teams under 10 people; Packer packer 1.10.0 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • They diverge on capability: Chainguard covers Hardened container images, Packer covers Image building.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Chainguard and Packer actually diverge.

Attributes where Chainguard and Packer differ
AttributeChainguardPacker
Pricing modelLicensing by artifact type and team sizeopen-source
PlatformsCloud, Container, VMLinux, Windows, Mac
CategoryCybersecurityCloud
FoundedUnknown2013

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 Chainguard

  • Hardened container images
  • CVE remediation SLA
  • SLSA L2/L3 builds
  • Sigstore signatures
  • SBOM generation
  • Language libraries
  • VM images
  • Artifact scanning

Only in Packer

  • Image building
  • Multi-platform support
  • Provisioners
  • Builders
  • Post-processors
  • Variables
  • Data sources
  • Validation

What people use each for

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

Chainguard

  • Deploying hardened container images with minimal attack surfacenot Packer
  • Meeting supply chain security requirements for regulated industriesnot Packer
  • Reducing CVE exposure with contractual remediation guaranteesnot Packer
  • Building secure language packages with automatic backportsnot Packer
  • Verifying artifact provenance with Sigstore signaturesnot Packer

Packer

  • Building identical machine images for multiple clouds from one templatenot Chainguard
  • Baking golden AMIs and VM images into a CI pipelinenot Chainguard
  • Creating immutable infrastructure artifacts consumed by Terraformnot Chainguard

Where each one falls short

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

Chainguard

  • Containers Catalog at 19,000 USD/year expensive for teams under 10 people
  • Per-image pricing for containers requires custom quotes with no transparency
  • Free tier limited to 5 container images for testing
  • Libraries pricing by ecosystem and developer count lacks transparent per-developer cost
  • VM image catalog pricing opacity makes cost estimation difficult

Packer

  • Packer 1.10.0 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • The Additional Use Grant forbids offering Packer to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Packer
  • Each version converts to the MPL 2.0 Change License only four years after that version is first published, and the Change Date is set separately per version
  • Alternative licensing for uses outside the grant must be arranged with the licensor rather than taken under the public licence

Pricing, plan by plan

Chainguard

Free
  • Free TierFree
    • Five container images to test and deploy
  • Containers Per-Image$undefined/custom
    • Licensed by quantity and type
    • Base images, application images, AI/ML images, FIPS variants
    • Custom pricing per image
  • Containers Catalog$19000/year
    • For 10-person engineering teams
    • 2,000+ container images
    • Contractual CVE remediation SLAs
  • Libraries Licensing$undefined/custom
    • Licensed by ecosystem (Python, Java, JavaScript)
    • Licensed by developer count
    • Unlimited pulls with no metering

Packer

Free
  • Open SourceFree
    • Multi-platform image building
    • Template-driven
    • Provisioner support

Which should you pick?

Choose Chainguard if

  • You need hardened container images.
  • You want to start without paying.
  • You work on Cloud, Container, VM.
  • You also want cve remediation sla.
Chainguard review

Choose Packer if

  • You need image building.
  • You want to start without paying.
  • You work on Linux, Windows, Mac.
  • You also want multi-platform support.
Packer review

Questions people ask

Is Chainguard or Packer better?
Neither clearly leads. Chainguard starts at Free and Packer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Chainguard or Packer?
Chainguard starts at Free and Packer at Free.
Does Chainguard or Packer run on more platforms?
Chainguard runs on Cloud, Container, VM. Packer runs on Linux, Windows, Mac.
Can I use Chainguard for free?
Both have a free tier, so you can try either at no cost before committing.
What is Chainguard best used for?
Chainguard is most often used for deploying hardened container images with minimal attack surface, meeting supply chain security requirements for regulated industries, reducing cve exposure with contractual remediation guarantees, building secure language packages with automatic backports. Of those, deploying hardened container images with minimal attack surface and meeting supply chain security requirements for regulated industries are not what Packer is typically brought in for.
What can Chainguard do that Packer cannot?
Chainguard covers Hardened container images, CVE remediation SLA, SLSA L2/L3 builds, Sigstore signatures. Packer covers Image building, Multi-platform support, Provisioners, Builders.

Answered from the vendors’ own pages

Chainguard: How much is the Chainguard Containers Catalog?

The Containers Catalog is 19,000 USD per year for 10-person engineering teams, providing access to 2,000+ hardened container images.

Source
Packer: How much does HashiCorp Packer cost?

Packer does not publish specific pricing on its website. The open-source Packer tool is free, while HCP Packer (HashiCorp's cloud-hosted version) offers a free trial, but detailed pricing requires contacting HashiCorp.

Source
Chainguard: What SLAs does Chainguard offer?

Chainguard provides contractual CVE remediation SLAs: 7 days for critical vulnerabilities, 14 days for high/medium/low severity, all with priority support.

Source
Chainguard: Can I try Chainguard before purchasing?

Yes. The free tier includes five container images for testing and deployment, allowing hands-on evaluation.

Source
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