Terraform is a free downloadable tool that you can interact with on the command line. It allows you to provide infrastructure on any cloud provider and handle configuration, plugins, and state. This open-source tool lets you specify on-prem and cloud resources in human-readable configuration files, which you can reuse, version, and share. Moreover, Terraform can handle low-level components (including storage, compute, and networking resources) and high-level components (including DNS entries and SaaS features).