OpenTofu
replaces Terraform
MPL-2.0 (OSI-approved, whole repository)
1 projects that cover part or all of what Terraform does. 1 of them have an open-source core; 0 are source-available; 0 need a human license read.
Terraform price: No per-seat price (Essentials). HCP Terraform is usage-based (resources under management), no per-seat price: Free up to 500 managed resources; Essentials $0.10/resource/mo; Standard $0.47/resource/mo; Premium $0.99/resource/mo. Corroborated from third-party reads. Source: vendor pricing page, checked 2026-11-10. Vendor site: Terraform site. Put your plan's price into the estimator below if it differs.
Self-hosting saves about $780 a year for 20 seats: SaaS $2,400 vs self-host $1,620 (server $144, backups $36, admin time $1,440). Break-even at about 14 seats at these numbers.
Functions differ: an open-source tool rarely matches every Terraform feature. Self-hosting means you handle updates, backups and security. Sponsored plate: none yet. Advertise.