Best Open Source Alternatives to AWS CloudFormation

Compare the best free and open-source alternatives to AWS CloudFormation — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 2 alternatives

AWS CloudFormation

Proprietary SaaS

PricingFree

Platformsweb

WebsiteVisit site

AWS CloudFormation alternatives compared

Open-source alternatives to AWS CloudFormation, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
OpenTofu	30,711	MPL-2.0	LinuxWindowsmacOS	No	Nov 2026	Visit
Pulumi CLI	25,841	Apache-2.0	LinuxWindowsmacOS	No	Nov 2026	Visit

Top open-source AWS CloudFormation alternatives

OpenTofu30,711MPL-2.0

OpenTofu is an open-source Infrastructure as Code CLI that replaces Terraform Cloud execution with fast, client-side encrypted deployments in private CI.

LinuxWindowsmacOS

vs AWS CloudFormation: a free, open-source option you fully control, licensed MPL-2.0.

Visit Details

Pulumi CLI25,841Apache-2.0

Pulumi CLI is an open-source IaC tool replacing static templates with TypeScript, Python, and Go, using local or cloud storage instead of Pulumi Cloud.

LinuxWindowsmacOS

vs AWS CloudFormation: a free, open-source option you fully control, licensed Apache-2.0.

Visit Details

Best Open Source Alternatives to AWS CloudFormation

AWS CloudFormation

AWS CloudFormation alternatives compared

Top open-source AWS CloudFormation alternatives

The modern standard for Protobuf workflows

Mentoring for backend developers. Consulting for startups.