tfsec vs Infracost: Which is Better in 2026?
Choosing between tfsec and Infracost 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:
tfsec
Security scanner for your Terraform code.
Best for you if:
- • You need something completely free
- • You need security features specifically
- • Scans Terraform code for security vulnerabilities.
- • Identifies misconfigurations before deployment.
Infracost
Shift FinOps Left: Proactively find and fix cloud cost issues before deployment.
Best for you if:
- • You need cloud & infrastructure features specifically
- • Provides pre-deployment cloud cost estimates for infrastructure-as-code changes.
- • Integrates into engineering workflows (GitHub, GitLab, Azure DevOps) to shift FinOps left.
| At a Glance |  tfsec |  Infracost |
|---|---|---|
Starts at | Free | $50/monthCloud |
Best For | Security | Cloud & Infrastructure |
Rating | - | - |
Choose tfsec or Infracost?
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 (Infracost requires payment)
- Your work is security-shaped, not cloud & infrastructure-shaped
Choose Infracost if
Shift FinOps Left: Proactively find and fix cloud cost issues before deployment.
- Cloud cost estimates
- Terraform integration
- CI/CD integration
- Your work is cloud & infrastructure-shaped, not security-shaped
| Feature | tfsec | Infracost |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | No ratings yet | No ratings yet |
| Categories | SecurityDeveloper Tools | Cloud & InfrastructureDeveloper Tools |
In-Depth Analysis
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
Infracost
Shift FinOps Left: Proactively find and fix cloud cost issues before deployment.
Strengths
- +Cloud cost estimates
- +Terraform integration
- +CI/CD integration
- +Open source
- +Active development
Weaknesses
- -Accuracy varies
- -Limited cloud support
- -Learning curve
- -Enterprise features paid
- -Setup effort
Key features
Pricing: tfsec vs Infracost
| Plan | tfsec | Infracost |
|---|---|---|
| Tier 1 | Free Free | Free Free |
| Tier 2 | N/A | $50 month Cloud |
| Tier 3 | N/A | custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on tfsec pricing and Infracost pricing.
Who Should Use What?
On a budget?
tfsec is free. Infracost is freemium.
Go with: tfsec
Want the highest-rated option?
Neither has user reviews yet.
Go with: tfsec
Value user reviews?
Neither has user reviews yet.
Go with: Infracost
3 Questions to Help You Decide
What's your budget?
tfsec is free. Infracost is freemium. Go with tfsec if free matters most.
What's your use case?
tfsec is a security tool. Infracost is in cloud & infrastructure. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Infracost
- Free tier available
- Our pick for this comparison
tfsec
- Completely free
- Better fit for security
The Bottom Line
Infracost is our pick. That said, tfsec is free, hard to beat on price.
Frequently Asked Questions
Is tfsec or Infracost better?
Infracost is rated in our evaluation. tfsec is free and Infracost is freemium.
What are tfsec and Infracost used for?
tfsec: Security scanner for your Terraform code.. Infracost: Shift FinOps Left: Proactively find and fix cloud cost issues before deployment..
What does tfsec cost vs Infracost?
tfsec is completely free. Infracost is freemium (free tier + paid plans). Visit their websites for detailed pricing.