Clair vs tfsec: Which is Better in 2026?
Choosing between Clair and tfsec comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Clair
Static vulnerability analysis for containers
Best for you if:
- • Clair is an open-source vulnerability scanner for container images
- • It analyzes container layers and reports known security vulnerabilities from multiple databases
tfsec
Security scanner for your Terraform code.
Best for you if:
- • Scans Terraform code for security vulnerabilities.
- • Identifies misconfigurations before deployment.
| At a Glance |  Clair |  tfsec |
|---|---|---|
Starts at | Free | Free |
Best For | Security | Security |
Rating | - | - |
Choose Clair or tfsec?
Choose Clair if
Static vulnerability analysis for containers
- Container vulnerability scanning
- Open source
- Quay.io integration
Choose tfsec if
Security scanner for your Terraform code.
- Terraform security scanner
- Static analysis for IaC
- Many built-in rules
| Feature | Clair | tfsec |
|---|---|---|
| Pricing Model | Free | Free |
| User Rating | ★4.4/5 86 reviews | No ratings yet |
| Categories | SecurityVulnerability Scanning | SecurityDeveloper Tools |
In-Depth Analysis
Clair
Static vulnerability analysis for containers
Strengths
- +Container vulnerability scanning
- +Open source
- +Quay.io integration
- +Good accuracy
- +Active development
Weaknesses
- -Setup complexity
- -Learning curve
- -UI basic
- -Documentation improving
- -Less known
Key features
tfsec
Security scanner for your Terraform code.
Strengths
- +Terraform security scanner
- +Static analysis for IaC
- +Many built-in rules
- +CI/CD integration ready
- +Open-source and free
Weaknesses
- -Terraform specific only
- -False positives possible
- -Rule customization needed
- -Now part of Trivy (Aqua Security)
- -Migration to Trivy recommended
Key features
Pricing: Clair vs tfsec
| Plan | Clair | tfsec |
|---|---|---|
| Tier 1 | Free Open Source | Free Free |
Pricing verified from each vendor's public pricing page. Compare in detail on Clair pricing and tfsec pricing.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: Clair
Want the highest-rated option?
Neither has user reviews yet.
Go with: Clair
Value user reviews?
Neither has user reviews yet.
Go with: Clair
3 Questions to Help You Decide
What's your budget?
Both are free. Pricing won't help you decide here.
What's your use case?
Both are security tools. Compare their specific features to decide.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Clair
- Completely free
- Our pick for this comparison
tfsec
- Choose if you want security scanner for your Terraform code
The Bottom Line
Clair is our pick.
Frequently Asked Questions
Is Clair or tfsec better?
Clair is rated in our evaluation. Both are free.
What are Clair and tfsec used for?
Clair: Static vulnerability analysis for containers. tfsec: Security scanner for your Terraform code..
What does Clair cost vs tfsec?
Clair is completely free. tfsec is completely free. Visit their websites for detailed pricing.