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Clair

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Static vulnerability analysis for containers

Free, no paid tier
Free Security Vulnerability Scanning Developer Tools
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Reviews on SourceForge
67 reviews tracked

The Bottom Line

Price
Free, no paid tier. Compare plans

Key facts

  • Clair is an open-source vulnerability scanner for container images
  • It analyzes container layers and reports known security vulnerabilities from multiple databases
  • Completely free and open-source

Pros

  • Container vulnerability scanning
  • Open source
  • Quay.io integration
  • Good accuracy
  • Active development

Cons

  • Setup complexity
  • Learning curve
  • UI basic
  • Documentation improving
  • Less known

What is Clair?

Editorial review
Clair scans container images for vulnerabilities before you deploy them. Feed it an image, get back a list of known CVEs in the packages it contains-security visibility into what you're running. Integration into registries enables automatic scanning. The vulnerability database updates continuously. API access enables custom workflows. Container security starts with knowing what vulnerabilities exist. Clair provides that visibility for organizations running containerized workloads.
how we evaluate Source quay.io ↗

Ratings Across the Web

4.3 (67 reviews)

Clair holds an aggregate rating of 4.3 out of 5 from 67 reviews across SourceForge, last checked May 29, 2026.

SourceForge 67 reviews
4.3/5

Ratings aggregated from independent review platforms. Learn more

Key Features

  • Vulnerability scanning
  • Container images
  • API-driven
  • Multiple sources
  • Open source
  • Red Hat

Pricing Plans

Pricing checked Oct 6, 2026

Clair plans and prices, checked October 2026
PlanPriceDetails
Open Source

$0

Apache 2.0 License

  • Container vulnerability scanning
  • Multi-distro support
  • 49+ languages
+1 more
  • OCI & Docker support
View full pricing

Is Clair worth the price?

Great value

Clair's pricing is exceptionally generous, as it is a completely free, open-source solution for container vulnerability scanning.

This makes it an incredibly cost-effective option for any organization. It's best for teams looking for robust, no-cost security scanning with the option for commercial support through Red Hat Quay.

Full Clair pricing: every plan, hidden costs and alternatives

Reviews

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4.3/5

Across 67 verified user reviews on SourceForge

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Still deciding?

Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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Clair FAQ

How does Clair help secure containerized applications?

Clair scans container images for known vulnerabilities before deployment, providing security visibility into the packages within. It identifies Common Vulnerabilities and Exposures (CVEs) present in your containerized workloads.

Which teams benefit most from using Clair?

Clair is best suited for development and operations teams that manage containerized applications and require early vulnerability detection. It helps organizations running containerized workloads maintain security visibility.

Does Clair integrate with container registries for automated scanning?

Yes, Clair offers integration into registries, enabling automatic scanning of container images. This allows for continuous security checks as images are pushed or updated.

How is Clair priced?

Clair is free to use, as it is an open-source solution. There is no paid plan required to access its container vulnerability scanning capabilities.

What kind of trade-offs should users consider when adopting Clair?

Users should be aware of Clair's setup complexity and learning curve, which may require more effort to get started. Its user interface is also basic, and while documentation is improving, it might not be as comprehensive as some commercial tools.

How does Clair compare to a tool like Nuclei?

Clair specializes in static vulnerability analysis for container images, identifying CVEs in packages before deployment. Nuclei, on the other hand, focuses on broader vulnerability scanning, often used for web application and network security testing.

Can Clair be used for custom security workflows?

Yes, Clair provides API access, which allows for the creation of custom security workflows. This enables users to integrate its scanning capabilities into their existing CI/CD pipelines or other security processes.

Source: quay.io

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