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Cybersecurity · head to head

Chainguard vs Namespace

Chainguard logo

Chainguard

Cybersecurity

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

From
Free
Free plan
Yes
Full reviewWebsite
Namespace logo

Namespace

Developer Tools

The dev platform for the next 100 billion commits

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Chainguard containers Catalog at 19,000 USD/year expensive for teams under 10 people; Namespace developer plan is pay-as-you-go only; minimum usage unclear
  • They diverge on capability: Chainguard covers Hardened container images, Namespace covers Devboxes.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Chainguard and Namespace actually diverge.

Attributes where Chainguard and Namespace differ
AttributeChainguardNamespace
Pricing modelLicensing by artifact type and team sizeUnknown
PlatformsCloud, Container, VMCloud, Mac, Windows, Linux
CategoryCybersecurityDeveloper Tools

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 Namespace

  • Devboxes
  • GitHub Actions runners
  • Docker builds
  • Cross-invocation caching
  • NVMe storage
  • High-speed networking
  • Multiple OS support
  • Bazel and Turborepo support

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 Namespace
  • Meeting supply chain security requirements for regulated industriesnot Namespace
  • Reducing CVE exposure with contractual remediation guaranteesnot Namespace
  • Building secure language packages with automatic backportsnot Namespace
  • Verifying artifact provenance with Sigstore signaturesnot Namespace

Namespace

  • Providing AI coding agents with cloud-based development environmentsnot Chainguard
  • Accelerating CI builds with faster GitHub Actions runnersnot Chainguard
  • Distributing builds across teams with managed infrastructurenot Chainguard
  • Scaling development velocity for monorepo organizationsnot 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

Namespace

  • Developer plan is pay-as-you-go only; minimum usage unclear
  • Team plan $100/mo is competitive but usage limits may be tight
  • Devbox pricing separate at $0.004/minute could add up quickly
  • Enterprise plan requires custom sales conversation

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

Namespace

Free
  • DeveloperFree
    • Pay-as-you-go
    • On-demand compute
    • Docker builds
  • Team$100/month
    • 100,000 unit minutes
    • 1,000 Docker builds
    • Everything in Developer
  • Business$250/month
    • 250,000 unit minutes
    • 2,500 Docker builds
    • Everything in Team
  • Enterprise$undefined/custom
    • Custom compute/Docker build limits
    • Audit log export
    • Enterprise SSO

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 Namespace if

  • You need devboxes.
  • You want to start without paying.
  • You work on Cloud, Mac, Windows, Linux.
  • You also want github actions runners.
Namespace review

Questions people ask

Is Chainguard or Namespace better?
Neither clearly leads. Chainguard starts at Free and Namespace at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Chainguard or Namespace?
Chainguard starts at Free and Namespace at Free.
Does Chainguard or Namespace run on more platforms?
Chainguard runs on Cloud, Container, VM. Namespace runs on Cloud, Mac, Windows, Linux.
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 Namespace is typically brought in for.
What can Chainguard do that Namespace cannot?
Chainguard covers Hardened container images, CVE remediation SLA, SLSA L2/L3 builds, Sigstore signatures. Namespace covers Devboxes, GitHub Actions runners, Docker builds, Cross-invocation caching.

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
Namespace: How is compute usage metered on the Developer plan?

Developer plan uses pay-as-you-go billing. Devboxes bill at $0.004 per minute. Storage and caching services have separate usage-based fees. A 30-day free trial is available to test usage patterns.

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
Namespace: What is the difference between Team and Business plans?

Team ($100/mo) includes 100,000 unit minutes and 1,000 Docker builds with email support. Business ($250/mo) includes 250,000 unit minutes, 2,500 Docker builds, and high concurrency with a dedicated Slack channel.

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
Namespace: Can Namespace support AI coding agents?

Yes, Namespace Devboxes are specifically designed as feature-rich development environments for AI coding agents, with full tooling and performance optimization.

Source
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