Terraform vs Pulumi
Terraform by HashiCorp is the dominant infrastructure-as-code tool with HCL configuration language and the largest provider ecosystem. Pulumi lets engineers use TypeScript, Python, Go, or C# for infrastructure definition, appealing to developers who prefer general-purpose languages over domain-specific syntax.
Build a custom alternative freeSide-by-side
Infrastructure as code vs Infrastructure as code using real programming languages.
| Feature | Terraform | Pulumi |
|---|---|---|
| Pricing from | Free–$20/user/mo (HCP) | Free–$50/user/mo |
| Pricing | Open-source free; HCP Terraform from $20/user/mo | Individual free; Team $50/user/mo |
| Best for | Ops teams and broad provider ecosystem | Developer teams wanting real programming languages |
| Language | HCL (declarative DSL) | TypeScript, Python, Go, C#, Java |
| Provider ecosystem | 3,000+ providers, industry standard | 1,200+ providers, full Terraform provider compat. |
| State management | Local, S3, HCP Terraform | Pulumi Cloud or self-managed |
| Testing | Terraform test (newer), Terratest | Built-in unit and integration testing |
The third option most teams miss
Picking between Terraform and Pulumi isn't the only choice.
Appaca generates Terraform and Pulumi modules from your architecture diagrams and cost requirements, optimizing resource configurations for your cloud budget before you provision. Build compliant, cost-optimized infrastructure from day one.
- No code, no deployment, no devops
- Built-in database, dashboards, team access
- Refine with chat as your needs change
- Free to start, no per-seat pricing surprises
Common questions
Many developers prefer Pulumi because infrastructure code lives in the same language as application code, enabling code sharing, better IDE support, and familiar testing frameworks.
OpenTofu is an open-source Terraform fork created after HashiCorp changed Terraform's license from MPL to BSL in 2023. It is a drop-in replacement and is governed by the Linux Foundation.
Yes, Pulumi can convert Terraform state files and HCL configurations to Pulumi programs, enabling incremental migration. The pulumi convert command handles most standard Terraform configurations.