Static vulnerability analysis for containers
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86 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Container vulnerability scanning
Biggest con
Setup complexity
TL;DR - Clair
- 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
Pricing: Free forever
Best for: Individuals & startups
4.4/5 across review platforms
What is Clair?
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.
Pros & Cons
Pros
- Container vulnerability scanning
- Open source
- Quay.io integration
- Good accuracy
- Active development
Cons
- Setup complexity
- Learning curve
- UI basic
- Documentation improving
- Less known
Ratings Across the Web
4.4(86 reviews)
Ratings aggregated from independent review platforms. Learn more
Key Features
Vulnerability scanningContainer imagesAPI-drivenMultiple sourcesOpen sourceRed Hat
Pricing Plans
Pricing checked May 29, 2026
Open Source
Free
Apache 2.0 License
- Container vulnerability scanning
- Multi-distro support
- 49+ languages
- OCI & Docker support
Reviews
4.4/5
Across 86 verified user reviews on SourceForge, Capterra
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Clair FAQ
Is Clair free?
Yes, Clair is free and open source. Apache 2.0 license. Container vulnerability scanner.
What is Clair?
Clair is a container vulnerability scanner. Analyzes container images for known vulnerabilities. Made by Red Hat.
Clair vs Trivy?
Trivy is easier to use and more comprehensive. Clair is designed for registry integration. Trivy for CLI; Clair for registries.
How does Clair work?
Scans container layers against vulnerability databases. Integrates with registries like Quay. Continuous scanning.
Source: quay.io