head to head · open source
Pulumi vs wasm3
Pulumi has 25,840 GitHub stars, 1,478 forks, 2,419 open issues and last shipped yesterday. wasm3 has 8,077 stars, 536 forks, 18 open issues and last shipped 1 months ago. Pulumi leads on adoption by 220% (25,840 vs 8,077 stars). Pulumi is written in Go under Apache-2.0; wasm3 is written in C under MIT. Pulumi has attracted 6% as many forks as stars, wasm3 7%. Pulumi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (containers), so they are genuine substitutes rather than adjacent tools.
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 | wasm3 | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 8.1K |
| License | Apache-2.0 | MIT |
| Written in | Go | C |
| Last push | 2026-11-02 | 2026-09-30 |
| Forks | ⑂ 1.5K | ⑂ 536 |
| 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 wasm3 if
- You want the wasm3 feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C
- You evaluated both and wasm3 fits your workflow better
About Pulumi
Infrastructure as Code for Humans and Agents Pulumi Infrastructure as Code is the easiest way to build and deploy infrastructure, of any architecture and on any cloud, using programming languages that you already know and love. Code and ship infrastructure faster with your favorite languages and tools, and embed IaC anywhere with Automation API. Simply write code in your favorite language and Pulumi automatically provisions and manages your resources on AWS, Azure, Google Cloud Platform, Kubernetes, and 300+ providers using an infrastructure as code approach. Skip the YAML, and use standard language features…
read the full Pulumi overview →
About wasm3
[!NOTE] I regret to inform the community that since my house was destroyed by russians who invaded my country, Wasm3 will enter a minimal maintenance phase . At this time, I am unable to continue the development of new features. However, I am committed to keeping the project alive and will actively review and merge incoming Pull Requests. I deeply appreciate your understanding and support during this difficult period. Your contributions to Wasm3 are now more valuable than ever. Wasm3 A fast WebAssembly interpreter and the most universal WASM runtime. See CoreMark 1.0 and independent benchmarks. Your mileage may…
read the full wasm3 overview →
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Frequently asked questions
Is Pulumi or wasm3 more popular?
Pulumi has 25,840 GitHub stars and wasm3 has 8,077. Pulumi has the larger community by that measure.
Are Pulumi and wasm3 free?
Both are open source. Pulumi is licensed under Apache-2.0 and wasm3 under MIT. Neither carries a licence fee.
What is the difference between Pulumi and wasm3?
Pulumi is written in Go and wasm3 in C. 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 wasm3?
Choose Pulumi if you want the larger community (25,840 stars) or its Apache-2.0 licence terms. Choose wasm3 if its feature set, stack or MIT licence fits better. Both are self-hostable.