Opentofu

OpenTofu is the Linux Foundation fork of Terraform, created after HashiCorp switched Terraform’s license from MPL 2.0 to the Business Source License (BSL) in August 2023. As of 2026, OpenTofu has 12% adoption among IaC practitioners, 140+ corporate backers, and 13,000+ GitHub stars — making it the leading open-source alternative to Terraform’s 76% market-share incumbent. Why Teams Are Migrating from Terraform to OpenTofu in 2026 The Infrastructure-as-Code market hit $2.1 billion in 2026 with 28.2% annual growth, driven by platform engineering adoption reaching 80% of large enterprises. Within that market, Terraform’s BSL license change triggered a migration wave that continues in 2026. The practical driver is not ideological: teams building SaaS platforms, internal developer portals, or tooling that competes with HashiCorp products face real legal exposure under BSL. The restriction prohibits using Terraform to build products that compete with HashiCorp offerings — a definition that is broadly interpreted enough to create compliance risk for many commercial applications. Enterprise adopters of OpenTofu include Boeing, Capital One, and AMD, driven primarily by license compliance requirements and OpenTofu’s native state encryption feature that regulated industries need. OpenTofu has 12% adoption among IaC practitioners as of April 2026, with 27% of teams planning to evaluate or expand its use in the next 12 months. For teams whose legal counsel flags BSL risk, or who need features like native state encryption that Terraform still lacks, migration to OpenTofu is increasingly the straightforward compliance decision. ...