Kustomize vs Terragrunt: Which Should You Choose in 2026?
Choosing between Kustomize and Terragrunt 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.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Kustomize
Kubernetes native configuration management
Best for you if:
- • You need ci/cd features specifically
- • Kustomize is a Kubernetes configuration management tool for customizing deployments
- • It patches and overlays YAML manifests without templating languages
Terragrunt
Terraform wrapper for DRY configurations
Best for you if:
- • You need workflow automation features specifically
- • Terragrunt is a thin wrapper for Terraform that keeps configurations DRY
- • It manages multiple Terraform modules with reduced duplication
| At a Glance |  Kustomize |  Terragrunt |
|---|---|---|
Price | Free | Free |
Best For | CI/CD | Workflow Automation |
Rating | 84/100 | 84/100 |
| Feature | Kustomize | Terragrunt |
|---|---|---|
| Pricing Model | Free | Free |
| Editorial Score | 84 | 84 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | CI/CDContainer Orchestration | Workflow AutomationCI/CD |
How Kustomize and Terragrunt Compare
Kustomize
Kubernetes native configuration management
Free · 84/100 score
Terragrunt
Terraform wrapper for DRY configurations
Free · 84/100 score
Kustomize is a ci/cd tool. Terragrunt is in workflow automation.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: Kustomize
Want the highest-rated option?
Kustomize: 84/100. Terragrunt: 84/100.
Go with: Kustomize
Value user reviews?
Neither has user reviews yet.
Go with: Kustomize
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?
Kustomize is a ci/cd tool. Terragrunt is in workflow automation. Pick the category that matches your needs.
How important are ratings?
Both score 84/100.
Key Takeaways
Kustomize
- Completely free
- Our pick for this comparison
Terragrunt
- Better fit for workflow automation
The Bottom Line
Kustomize (84/100) is our pick.
Frequently Asked Questions
Is Kustomize or Terragrunt better?
Kustomize scores 84/100 in our evaluation. Both are free.
What are Kustomize and Terragrunt used for?
Kustomize: Kubernetes native configuration management. Terragrunt: Terraform wrapper for DRY configurations.
What does Kustomize cost vs Terragrunt?
Kustomize is completely free. Terragrunt is completely free. Visit their websites for detailed pricing.