Free for personal projects (includes one deployment server, one static site), Cloud 66 gives you everything you need to build, deploy, and grow your applications on any cloud without the headache of the “server stuff.”

Deployment.io helps developers automate deployments on AWS. On our free tier, a developer (single user) can deploy unlimited static sites, web services, and environments. We provide 20 job executions free per month with previews and auto-deploys included in the free tier

Scalr is a Terraform Automation and COllaboration (TACO) product used to better collaboration and automation on infrastructure and configurations managed by Terraform. Full Terraform CLI support, OPA integration, and a hierarchical configuration model. No SSO tax. All features are included. Use up to 50 runs/month for free

Collaborative solution to visually build and manage cloud infrastructures from end-to-end

HashiCorp Vagrant Cloud. Vagrant box hosting

An alternative public box index

Terraform Cloud. Free remote state management and team collaboration for up to 500 resources

Modern infrastructure as a code platform that allows you to use familiar programming languages and tools to build, deploy, and manage cloud infrastructure

DSL, open-source, and free (paid solution adds team management, policy-as-code...). 

GitOps-first open-source Infrastructure as Code automation for Terraform, OpenTofu, Terragrunt, CDKTF, and Pulumi.