OpenTofu vs Pulumi
A side-by-side comparison of two self-hosted developer tools & git options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
OpenTofu
Open-source infrastructure as code tool
VS
Pulumi
Infrastructure as code using general-purpose languages
| Feature | OpenTofu | Pulumi |
|---|---|---|
| Category | Developer Tools & Git | Developer Tools & Git |
| License | MPL-2.0 | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 512 MB |
| Deployment | binary, source | binary, source |
| GitHub stars | ★ 29,718 | ★ 25,542 |
| First released | 2023 | 2018 |
| Replaces | Terraform | Terraform, AWS CloudFormation |
Why pick each one
Choose OpenTofu if…
- Released under the MPL-2.0 license
- Mature project with 29.7k GitHub stars
- Written in Go
- Tiny footprint — runs in 256 MB RAM
Choose Pulumi if…
- Released under the Apache-2.0 license
- Mature project with 25.5k GitHub stars
- Written in Go
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is OpenTofu or Pulumi better?
Neither is universally better. OpenTofu has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are OpenTofu and Pulumi free and open-source?
Yes. OpenTofu is licensed under MPL-2.0 and Pulumi under Apache-2.0. Both can be self-hosted at no software cost.
Can I run OpenTofu and Pulumi with Docker?
OpenTofu: check the project docs for container support. Pulumi: check the project docs for container support.