Best Infrastructure as Code tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Use Case Rankings

Ordered by ToolVitals score, then health, shipping, confidence, GitHub stars, and name.

#ToolHealthShippingOpennessStarsScoreStatus
01Meshery
Meshery, the cloud native manager
9998OSI-approved OSS11.8k98Active
02ProxmoxVE Scripts
Proxmox VE Helper-Scripts (Community Edition)
9898OSI-approved OSS29.6k98Active
03Pulumi
Pulumi - Infrastructure as Code in any programming language 🚀
9897OSI-approved OSS25.7k97Active
04Atmos
👽 Terraform Orchestration Tool for DevOps. Keep environment configuration DRY with hierarchical imports of configurations, inheritance, and WAY more. Native support for Terraform and Helmfile.
9796OSI-approved OSS1.4k97Active
05Terragrunt
Orchestration tool for scaling Terraform/OpenTofu infrastructure as code.
9796OSI-approved OSS9.8k96Active
06OpenTofu
Open-source infrastructure as code
9696OSI-approved OSS30.2k96Active
07Crossplane
The Cloud Native Control Plane
9695OSI-approved OSS12.1k96Active
08Terrateam
Open-source GitOps orchestration for Terraform and OpenTofu workflows.
9596OSI-approved OSS1.3k95Active
09pyinfra
🔧 pyinfra turns Python code into shell commands and runs them on your servers. Execute ad-hoc commands and write declarative operations. Target SSH servers, local machine and Docker containers. Fast and scales from one server to thousands.
9592OSI-approved OSS6k94Active
10DeployWhisper
AI-powered pre-deployment risk intelligence platform for infrastructure changes.
9089OSI-approved OSS1090Active
11Stelvio
Ship Python to AWS in minutes, not days
8075OSI-approved OSS28178Active
12Terramate
Open-source Infrastructure as Code (IaC) orchestration platform: GitOps workflows, orchestration, code generation, observability, drift detection, asset management, policies, Slack notifications, and more. Integrates with Terraform, OpenTofu, Terragrunt, Kubernetes, GitHub Actions, GitLab CI/CD, BitBucket Pipelines, and any other CI/CD platform.
7777OSI-approved OSS3.6k77Active
13SST
Build full-stack apps on your own infrastructure.
4729OSI-approved OSS26.3k40Critical
14ops0-cli
ops0 is an AI-powered natural language DevOps CLI native to Claude AI with ansible, terraform, kubernetes, aws, azure and docker operations in a single cli. An open-source alternative to complex DevOps workflows, manual
3417OSI-approved OSS7527Critical

Not Scored

Tracked for context, but excluded from rankings because comparable open/source-visible evidence is unavailable.