# opentofu/opentofu

OpenTofu lets you declaratively manage your cloud infrastructure.

Repository: https://github.com/opentofu/opentofu
Canonical: https://ross.abutalabs.com/products/opentofu
Homepage: https://opentofu.org
Language: Go
License: MPL-2.0
License Family: copyleft
Last push: 2026-08-26T21:33:28+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 79
- inputs: {"age_days": 1113, "days_push": 7, "days_rel": 14, "gap_med": 4.5, "n_releases_24m": 55}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 29937, forks 1341 (observed 2026-08-28T04:11:53.759133+00:00)

## What it is
OpenTofu is an open-source infrastructure-as-code CLI tool for declaratively building, changing, and versioning cloud infrastructure, forked from Terraform in response to HashiCorp's BUSL license change. It is a drop-in Terraform replacement under Linux Foundation stewardship with a large provider and module ecosystem.

## Use cases
- provision cloud infrastructure as code
- migrate from Terraform to an open-source alternative
- plan and preview infrastructure changes before applying
- manage AWS, Cloudflare, and GitHub resources declaratively
- version and share infrastructure configurations in git
- automate complex multi-resource infrastructure changes

## When to choose
- you need a permissively licensed, community-driven Terraform replacement
- you want features Terraform lacks, like state encryption and provider mocking in tests
- you want to avoid BUSL licensing uncertainty for commercial use
- you rely on the existing Terraform provider and module ecosystem

## When to avoid
- you are locked into HashiCorp commercial support or HCP Terraform workflows
- you need tooling for Kubernetes manifests rather than cloud resource provisioning
- you prefer imperative configuration management tools like Ansible

## Facets
- artifact type: cli-tool
- maturity: stable
- function: infrastructure-as-code, cli, deployment, configuration-management
- domain: infrastructure-as-code, cloud-computing, self-hosted
- platform: windows, cli, go, cross-platform
- tags: terraform-fork, iac, cloud-provisioning, state-management, cncf, open-source-license, devops, automation, linux, macos

## Member repositories
- opentofu/opentofu (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:53.759133+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:52:49.237484+00:00, confidence not recorded.
  - readme: https://github.com/opentofu/opentofu (fetched 2026-08-28T04:11:53.759133+00:00, sha 6d7c9dc5b598)
  - homepage: https://opentofu.org (fetched 2026-08-29T07:49:58.782490+00:00, sha f1786bab7e70)
  - site_page: https://opentofu.org/docs (fetched 2026-08-29T07:49:58.794873+00:00, sha 5ac42d9d0a41)
  - site_page: https://opentofu.org/docs/v1.12 (fetched 2026-08-29T07:49:58.796737+00:00, sha c0e7872e368b)
  - site_page: https://opentofu.org/docs/v1.11 (fetched 2026-08-29T07:49:58.799029+00:00, sha 6e34b222abd5)
  - site_page: https://opentofu.org/docs/v1.10 (fetched 2026-08-29T07:49:58.801985+00:00, sha 803e4b86deec)
  - site_page: https://opentofu.org/docs/v1.9 (fetched 2026-08-29T07:49:58.804127+00:00, sha 2bbee1f58e1a)
  - site_page: https://opentofu.org/docs/v1.8 (fetched 2026-08-29T07:49:58.805852+00:00, sha 85da09273f79)
  - site_page: https://opentofu.org/docs/v1.7 (fetched 2026-08-29T07:49:58.807648+00:00, sha a25d09127f0d)
  - site_page: https://opentofu.org/faq (fetched 2026-08-29T07:49:58.792389+00:00, sha e066e5a94f12)
- Data as of 2026-08-30T08:39:29.467469+00:00.