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OpenTofu vs Pulumi
Pulumi uses general-purpose languages for IaC, whereas OpenTofu uses HCL like Terraform.
OpenTofuOpen-source infrastructure as code, a fork of Terraform
PulumiInfrastructure as code in TypeScript, Python, Go and moreWhich to pick
Pick OpenTofu if you want…
- Open-source Terraform alternative
- A free, open-source tool
- Integrations with GCP, AWS KMS or GCP KMS (on OpenTofu's list, not Pulumi's)
Pick Pulumi if you want…
- IaC with real programming languages
- IaC with TypeScript/Python/Go
- Integrations with Azure, Google Cloud or Kubernetes (on Pulumi's list, not OpenTofu's)
OpenTofu is a community fork of Terraform with the same HCL approach, not a multi-language platform.
Side by side
- What it is
- OpenTofu:OpenTofu is an open-source fork of Terraform for infrastructure-as-code.
- Pulumi:Pulumi is an open-source infrastructure-as-code platform that lets you provision cloud resources using real programming languages.
- Best for
- OpenTofu:Open-source Terraform alternative
- Pulumi:IaC with real programming languages
- Who it’s for
- OpenTofu:Developers and teams needing open-source IaC tooling.
- Pulumi:Developers and platform teams who want IaC with full-language support and AI assistance.
- Pricing
- OpenTofu:Open source
- Pulumi:Freemium
- Plans
- OpenTofu:—
- Pulumi:Free $0 · Essentials $40/month per month · Pro $400/month per month · Enterprise $2,000/month per month
- Open source
- OpenTofu:Yes, 30,345 GitHub stars
- Pulumi:Yes, 25,753 GitHub stars
- Works with
- OpenTofu:AWS, GCP, AWS KMS, GCP KMS, OpenBao
- Pulumi:AWS, Azure, Google Cloud, Kubernetes, GitHub, GitLab, Azure DevOps, CircleCI
OpenTofu features
- Exclusion Flag. Use -exclude to selectively skip resources during plan and apply operations.
- Provider Iteration. Dynamically generate providers with for_each for multi-region, multi-environment deployments.
- Early Variable/Local Evaluation. Update modules globally via a single variable change for consistent versioning.
- State Encryption. Client-side encryption of state files with multiple key providers (PBKDF2, AWS KMS, GCP KMS, OpenBao).
- Community-Driven Development. Open source project governed by the Linux Foundation with contributions from many vendors.
Pulumi features
- Multi-language SDKs. Write infrastructure in TypeScript, Python, Go, .NET, Java, YAML or HCL with full IDE support.
- Pulumi Neo AI agent. Natural-language interface that generates, reviews and executes infrastructure code safely.
- Centralized secrets (ESC). Single interface for Vault, AWS Secrets Manager, Azure Key Vault and OIDC short-lived credentials.
- Policy as code & governance. Enforce compliance with built-in policies, custom policy packs and audit trails.
- Self-service developer portal. Golden-path templates and components let engineers provision resources while platform teams retain control.
- Automation API & CI/CD integrations. Automate deployments via Pulumi Automation API and integrate with GitHub, GitLab, Azure DevOps, CircleCI, etc.
OpenTofu vs Pulumi FAQ
Is OpenTofu or Pulumi free?+
OpenTofu is free and open source. Pulumi has a free plan; paid plans start at $40/month (Essentials).
Which is cheaper, OpenTofu or Pulumi?+
OpenTofu is free, so it costs less. Pulumi starts at $40/month (Essentials).
Is OpenTofu or Pulumi open source?+
Yes, both are open source: OpenTofu (opentofu/opentofu on GitHub, MPL-2.0 license) and Pulumi (pulumi/pulumi on GitHub, Apache-2.0 license).
Do OpenTofu and Pulumi integrate with the same tools?+
Partly. Both list AWS. OpenTofu also lists GCP, AWS KMS, GCP KMS and OpenBao; Pulumi also lists Azure, Google Cloud, Kubernetes, GitHub and 4 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.