#1
Kubernetes

Kubernetes

★★★★★ 4.5 Free Free plan

Open-source container orchestration platform for automating deployment, scaling, and management of containerized applications across clusters of machines.

container-orchestrationauto-scalingservice-discoveryload-balancing
✓ De facto standard for container orchestration✓ Highly extensible with custom resources and operators✓ Automatic scaling and self-healing capabilities
#2
Terraform

Terraform

★★★★★ 4.5 Free / $0.00014+ Free plan

Infrastructure-as-code tool by HashiCorp for provisioning and managing cloud resources across multiple providers using declarative configuration files.

infrastructure-as-codemulti-cloudstate-managementplan-and-apply
✓ Multi-cloud support with consistent workflow✓ Declarative language (HCL) is readable and maintainable✓ Massive provider ecosystem (3,000+ providers)
#3

Spacelift

★★★★ 4.4 Free / $35+ Free plan

Infrastructure orchestration platform for Terraform, OpenTofu, Pulumi, and CloudFormation with policy, drift detection, and collaboration features.

iac-orchestrationpolicy-enginedrift-detectionmodules-registry
✓ Multi-IaC support✓ Excellent policy engine✓ Good drift detection
#4

env0

★★★★ 4.3 Free / $35+ Free plan

Infrastructure as code automation platform with self-service environments, cost estimation, and governance for Terraform, Pulumi, and more.

iac-automationcost-estimationself-servicedrift-detection
✓ Excellent cost visibility✓ Self-service environments✓ Strong governance features

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