CodeQL vs tfsec: Which is Better in 2026?
Choosing between CodeQL 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:
CodeQL
Discover vulnerabilities across a codebase with industry-leading semantic code analysis.
Best for you if:
- • Semantic code analysis engine for vulnerability discovery.
- • Allows querying code like data to find security flaws.
tfsec
Security scanner for your Terraform code.
Best for you if:
- • You need something completely free
- • Scans Terraform code for security vulnerabilities.
- • Identifies misconfigurations before deployment.
| At a Glance |  CodeQL |  tfsec |
|---|---|---|
Starts at | $30/month per committerCode Security | Free |
Best For | Security | Security |
Rating | - | - |
Choose CodeQL or tfsec?
Choose CodeQL if
Discover vulnerabilities across a codebase with industry-leading semantic code analysis.
- Powerful code analysis
- Security focus
- GitHub integration
Choose tfsec if
Security scanner for your Terraform code.
- Terraform security scanner
- Static analysis for IaC
- Many built-in rules
- You want a fully free tool (CodeQL requires payment)
| Feature | CodeQL | tfsec |
|---|---|---|
| Pricing Model | Freemium | Free |
| User Rating | No ratings yet | No ratings yet |
| Categories | SecurityDeveloper Tools | SecurityDeveloper Tools |
In-Depth Analysis
CodeQL
Discover vulnerabilities across a codebase with industry-leading semantic code analysis.
Strengths
- +Powerful code analysis
- +Security focus
- +GitHub integration
- +Custom queries
- +Free for public repos
Weaknesses
- -Learning curve
- -Query writing complex
- -Slow scans
- -Resource intensive
- -False positives
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: CodeQL vs tfsec
| Plan | CodeQL | tfsec |
|---|---|---|
| Tier 1 | Free Free (Public repos) | Free Free |
| Tier 2 | $30 month per committer Code Security | N/A |
| Tier 3 | $19 month per committer Secret Protection | N/A |
Pricing verified from each vendor's public pricing page. Compare in detail on CodeQL pricing and tfsec pricing.
Who Should Use What?
On a budget?
tfsec is free. CodeQL is freemium.
Go with: tfsec
Want the highest-rated option?
Neither has user reviews yet.
Go with: CodeQL
Value user reviews?
Neither has user reviews yet.
Go with: CodeQL
3 Questions to Help You Decide
What's your budget?
CodeQL is freemium. tfsec is free. Go with tfsec if free matters most.
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
CodeQL
- Free tier available
- Our pick for this comparison
tfsec
- Completely free
The Bottom Line
CodeQL is our pick. That said, tfsec is free, hard to beat on price.
Frequently Asked Questions
Is CodeQL or tfsec better?
CodeQL is rated in our evaluation. CodeQL is freemium and tfsec is free.
What are CodeQL and tfsec used for?
CodeQL: Discover vulnerabilities across a codebase with industry-leading semantic code analysis.. tfsec: Security scanner for your Terraform code..
What does CodeQL cost vs tfsec?
CodeQL is freemium (free tier + paid plans). tfsec is completely free. Visit their websites for detailed pricing.