OpenTofu Foundations

CLI binary: tofu instead of terraform
First stable release: 1.6.0 (January 2024)
Registry: registry.opentofu.org for providers and modules
Config syntax: Same HCL &mdash; existing .tf files work without changes
License: Apache 2.0 (permissive, no usage restrictions)

Learn to write OpenTofu configs

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Curriculum

main.tf

Write your OpenTofu configuration, then press Check.

New to OpenTofu?

Start with Foundations — an interactive guide that teaches the tofu CLI, HCL syntax, state management, native state encryption, modules, and how to migrate from Terraform, one step at a time.

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