head to head · open source
Pulumi vs certimate
Pulumi has 25,695 GitHub stars, 1,431 forks, 2,419 open issues and last shipped today. certimate has 9,309 stars, 901 forks, 51 open issues and last shipped 3 days ago. Pulumi leads on adoption by 176% (25,695 vs 9,309 stars). Pulumi is written in Go under Apache-2.0; certimate is written in Go under MIT. Pulumi has attracted 6% as many forks as stars, certimate 10%. Pulumi was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Pulumi | certimate | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 9.3K |
| License | Apache-2.0 | MIT |
| Written in | Go | Go |
| Last push | 2026-09-18 | 2026-09-15 |
| Forks | ⑂ 1.4K | ⑂ 901 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Pulumi if
- You weight community size — 26K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick certimate if
- You want the certimate feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and certimate fits your workflow better
About Pulumi
Pulumi is an open source infrastructure as code tool that lets teams define and deploy cloud infrastructure using general purpose programming languages instead of YAML, aimed at developers, platform engineers, and agents working across AWS, Azure, Google Cloud Platform, and Kubernetes.
read the full Pulumi overview →
About certimate
Certimate is an open source, MIT licensed, self hosted ACME client that automates the full lifecycle of SSL/TLS certificates — issuance, deployment, renewal, and monitoring — through a visual workflow, and it is built for DevOps engineers and infrastructure teams who manage certificates across many domains, registrars, and hosting providers.
read the full certimate overview →
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Frequently asked questions
Is Pulumi or certimate more popular?
Pulumi has 25,695 GitHub stars and certimate has 9,309. Pulumi has the larger community by that measure.
Are Pulumi and certimate free?
Both are open source. Pulumi is licensed under Apache-2.0 and certimate under MIT. Neither carries a licence fee.
What is the difference between Pulumi and certimate?
Pulumi is written in Go and certimate in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Pulumi or certimate?
Choose Pulumi if you want the larger community (25,695 stars) or its Apache-2.0 licence terms. Choose certimate if its feature set, stack or MIT licence fits better. Both are self-hostable.