Best Infrastructure as Code (IaC) Tools

Explore leading tools in the Infrastructure as Code (IaC) category, including open-source options and SaaS products. Compare features, use cases, and find the best fit for your workflow.

5 open-source projects · 3 SaaS products

Explore open-source projects Compare SaaS products

Top open-source Infrastructure as Code (IaC)

These projects are active, self-hostable choices for knowledge management teams evaluating alternatives to SaaS tools.

OpenTofu

Declarative, safe, and efficient infrastructure management for any provider

Infrastructure as Code (IaC)

Stars: 27,233
License: MPL-2.0
Last commit: 3 days ago

GoActive

Pulumi

Write infrastructure with any language, deploy anywhere instantly

Infrastructure as Code (IaC)

Stars: 24,233
License: Apache-2.0
Last commit: 3 days ago

GoActive

Crossplane

Declarative, code‑free control plane for multicloud infrastructure

Infrastructure as Code (IaC)

Stars: 11,155
License: Apache-2.0
Last commit: 3 days ago

GoActive

Terragrunt

Scale Terraform and OpenTofu workflows with flexible orchestration

Infrastructure as Code (IaC)

Stars: 9,135
License: MIT
Last commit: 4 days ago

GoActive

Atlantis

Automate Terraform pull‑request workflows with self‑hosted execution

Infrastructure as Code (IaC)

Stars: 8,674
License: Apache-2.0
Last commit: 4 days ago

GoActive

Most starred project

OpenTofu

27,233★

Declarative, safe, and efficient infrastructure management for any provider

Popular SaaS Platforms to Replace

Understand the commercial incumbents teams migrate from and how many open-source alternatives exist for each product.

Scalr

Terraform Cloud alternative for infrastructure

Infrastructure as Code (IaC)

Alternatives tracked

2 alternatives

Spacelift

Infrastructure-as-Code CI/CD for Terraform

Infrastructure as Code (IaC)

Alternatives tracked

2 alternatives

Terraform

Infrastructure-as-code tool that allows provisioning of cloud infrastructure using declarative configuration files

Infrastructure as Code (IaC)

Alternatives tracked

3 alternatives

Most compared product

Terraform

3 open-source alternatives

Terraform is an open-source infrastructure-as-code tool that lets you define cloud and on-premises infrastructure resources in human-readable configuration files. It supports many providers (AWS, Azure, GCP, Kubernetes, etc.) through plugins, enabling a unified way to manage diverse resources. Using Terraform, teams can version control their infrastructure, preview changes (execution plans), and apply updates consistently. It handles resource dependencies and state management, allowing safe creation, change, and destruction of complex environments with a single command, thus automating infrastructure provisioning and reducing manual errors.

Leading hosted platforms

Scalr, Spacelift, Terraform

Frequently replaced when teams want private deployments and lower TCO.

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