Best Atlantis Alternatives

HashiCorp's infrastructure-as-code tool for provisioning and managing cloud resources declaratively using HCL (HashiCorp Configuration Language). Write infrastructure definitions once and deploy to AWS, GCP, Azure, DigitalOcean, and 4,000+ providers. Features state management for tracking resources, plan/apply workflow for safe changes, modules for reusability, and workspaces for environment isolation. The industry standard for multi-cloud IaC with 48K+ GitHub stars.

Pulumi is a modern Infrastructure as Code platform that lets teams define cloud infrastructure using familiar programming languages instead of DSLs. Supports TypeScript, Python, Go, C#, Java, and YAML across major clouds, Kubernetes, and a broad Pulumi Registry with Terraform-derived provider coverage. Offers testing, IDE autocomplete, reusable components, and Pulumi Cloud state/governance features.

Infracost shows cloud cost changes directly in pull requests before infrastructure-as-code changes are deployed. It calculates cost impact across AWS, Azure, and GCP for Terraform, Terragrunt, CloudFormation, and AWS CDK workflows, with diffs in GitHub, GitLab, Bitbucket, and Azure DevOps. 12.4K+ GitHub stars, Apache 2.0 licensed. Used by GitLab, HelloFresh, JPMorgan Chase, BMW, and Accenture.