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OpenTofu

Open-source Terraform fork — community-driven Infrastructure as Code.

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OpenTofu is an open-source fork of Terraform created by the Linux Foundation after HashiCorp switched Terraform to the BSL license. Designed to preserve existing Terraform workflows and configurations, it offers state encryption, early variable evaluation, and a community-driven development model. Backed by major cloud providers and companies.

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OpenTofu was created in September 2023 as a direct response to HashiCorp's decision to change Terraform's license from MPL 2.0 to the Business Source License (BSL). Managed by the Linux Foundation, it aims to keep Infrastructure as Code truly open source.

OpenTofu is positioned as a drop-in replacement that preserves existing Terraform workflows and configurations, and its current ecosystem spans 3,900+ providers and 23,600+ modules. It has also introduced unique features not available in Terraform, including state file encryption, early variable and local evaluation, and provider-defined functions.

The project has strong industry backing from companies including Gruntwork, Spacelift, env0, Scalr, and major cloud providers. It's completely free under the MPL 2.0 license.

Pricing

Free and open source (MPL 2.0).

Platforms

CLI on macOS, Windows, Linux. Works with all major cloud providers.

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