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Pulumi

Infrastructure as Code using real programming languages — TypeScript, Python, Go, C#, Java.

freemiumopen sourceupdated Aug 16, 2026

Pulumi is a modern Infrastructure as Code platform that lets teams define cloud infrastructure using familiar programming languages instead of DSLs. Supports TypeScript, Python, Go, C#, Java, and YAML across major clouds, Kubernetes, and a broad Pulumi Registry with Terraform-derived provider coverage. Offers testing, IDE autocomplete, reusable components, and Pulumi Cloud state/governance features.

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Pulumi takes a fundamentally different approach to Infrastructure as Code by letting developers use general-purpose programming languages they already know. Instead of learning HCL (Terraform) or YAML, teams can use TypeScript, Python, Go, C#, or Java with full IDE support, type checking, testing, and all the software engineering practices they're accustomed to.

The platform supports major clouds, Kubernetes, and a broad Pulumi Registry that includes native packages plus Terraform-derived providers. Pulumi AI can generate infrastructure code from natural language prompts, while Pulumi Cloud adds state management, secrets and configuration, environments, collaboration controls, RBAC, drift detection, governance, and policy-as-code.

Pulumi is open source (Apache 2.0) for the CLI and SDKs. Pulumi Cloud offers a free individual tier; current public Team pricing starts at $40/month with included resources, and Enterprise options are handled separately.

Pricing

Open-source CLI free. Individual Pulumi Cloud free. Team from $40/mo with included resources; Enterprise/custom options available.

Platforms

CLI on macOS, Windows, Linux. Pulumi Cloud for state management. Supports all major clouds.

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Comparisons

Terraform vs Pulumi — Declarative HCL vs Programmatic IaC with Real Languages

Terraform and Pulumi are the two most prominent Infrastructure as Code tools in 2026, representing fundamentally different approaches to cloud provisioning. Terraform uses HCL, a purpose-built declarative language with the largest provider ecosystem of 4,800+ integrations. Pulumi lets you define infrastructure in general-purpose programming languages like TypeScript, Python, and Go, bringing full language features to infrastructure management.

TerraformPulumi

FAQ

What is Pulumi?

Pulumi is a modern Infrastructure as Code platform that lets teams define cloud infrastructure using familiar programming languages instead of DSLs. Supports TypeScript, Python, Go, C#, Java, and YAML across major clouds, Kubernetes, and a broad Pulumi Registry with Terraform-derived provider coverage. Offers testing, IDE autocomplete, reusable components, and Pulumi Cloud state/governance features.

Is Pulumi free?

Pulumi offers a free tier alongside paid plans. Open-source CLI free. Individual Pulumi Cloud free. Team from $40/mo with included resources; Enterprise/custom options available.

Is Pulumi open source?

Yes — Pulumi is open source.

What are the best Pulumi alternatives?

The top editor-verified Pulumi alternatives are Crossplane, Twill AI.

How does Pulumi score in our review?

Our hands-on review scores Pulumi 86/100 overall, based on speed, privacy, and developer-experience testing.