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Companies and Developers Using OpenTofu

OpenTofu is the MPL-licensed community fork of Terraform, backed by the Linux Foundation and adopted by companies like Harness, Spacelift, and env0. Find the developers and teams running it.

By the numbers

28.4k
GitHub stars
1.2k
Forks
2,337+
Contributors
Apr 2026
Latest release

Source: GitHub · fetched 2026-04-17

What is OpenTofu?

OpenTofu is an infrastructure-as-code tool forked from Terraform in August 2023 after HashiCorp relicensed Terraform under the Business Source License. It is MPL 2.0 licensed, governed by the Linux Foundation, and maintains wire-level compatibility with Terraform's HCL syntax, state files, and provider protocol.

The fork's appeal is simple: teams that were uncomfortable with the BSL change or building products on top of Terraform needed a version they could depend on without license risk. OpenTofu ships its own registry, has added features Terraform has not (early variable evaluation, state encryption, provider-defined functions), and is the default in several managed Terraform competitors. Most existing Terraform configurations run unchanged on OpenTofu.

Who uses OpenTofu?

Public OpenTofu adopters include Harness, Spacelift, env0, Scalr, and Gruntwork, which all ship it as a first-class runtime alongside or instead of Terraform. Cloud providers including Oracle Cloud and several OpenStack vendors contribute providers. It is the default engine on a growing share of new platform-engineering deployments that started after 2024.

Typical OpenTofu users are the same platform engineers, DevOps, and SRE teams that use Terraform—plus the Terraform ecosystem vendors who needed an open-licensed runtime to build on. These roles buy drift detection, policy-as-code, cost management, secrets management, and Kubernetes operators, which makes them a direct overlap with the Terraform buyer profile.

According to the OpenTofu README: “OpenTofu is an OSS tool for building, changing, and versioning infrastructure safely and efficiently.” (source)

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Frequently asked questions about OpenTofu

What companies use OpenTofu?

OpenTofu is used in production at Spacelift, Gruntwork, and hundreds of infrastructure teams migrating away from HashiCorp Terraform following the BSL license change in 2023.

Who maintains OpenTofu?

The OpenTofu community, governed by the Linux Foundation, with founding members including Spacelift, env0, Scalr, Gruntwork, and Harness. OpenTofu is the fully open-source (MPL 2.0) fork of Terraform.

What are alternatives to OpenTofu?

Terraform (the upstream it forked from, now BSL-licensed), Pulumi (programming-language-based IaC), AWS CDK (TypeScript/Python CDK targeting AWS), and Crossplane (Kubernetes-native IaC). Most Terraform tooling is compatible with OpenTofu.

How many developers contribute to OpenTofu?

OpenTofu has 2,337 contributors (GitHub, 2026/04). It is one of the more actively contributed open-source projects in its category, with contributions from both individual developers and corporate engineering teams.

Is OpenTofu production-ready?

Yes. OpenTofu is production-ready: it has 28.4k GitHub stars, 2,337 contributors (GitHub, 2026/04), and is last released Apr 2026. It is used in production at large-scale organizations and has a mature release cadence.

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