head to head · open source
Pulumi vs wtf
Pulumi has 25,840 GitHub stars, 1,478 forks, 2,419 open issues and last shipped yesterday. wtf has 17,139 stars, 867 forks, 107 open issues and last shipped 13 days ago. Pulumi leads on adoption by 51% (25,840 vs 17,139 stars). Pulumi is written in Go under Apache-2.0; wtf is written in Go under MPL-2.0. Pulumi has attracted 6% as many forks as stars, wtf 5%. Pulumi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (go, golang), 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 | wtf | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 17K |
| License | Apache-2.0 | MPL-2.0 |
| Written in | Go | Go |
| Last push | 2026-11-02 | 2026-10-21 |
| Forks | ⑂ 1.5K | ⑂ 867 |
| 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 wtf if
- You want the wtf feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches Go
- You evaluated both and wtf 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 wtf
:rotating light: :warning: This project is going through some changes as we prepare for v1.0. This includes a rename from WTF to Tessera ! Stay tuned! :warning: :rotating light: WTF (aka 'wtfutil') is the personal information dashboard for your terminal, providing at a glance access to your very important but infrequently needed stats and data. Used by thousands of developers and tech people around the world, WTF is free and open source. To support the continued use and development of WTF, please consider sponsoring WTF via GitHub Sponsors. Are you a contributor or sponsor? Awesome! See here for how you can…
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Frequently asked questions
Is Pulumi or wtf more popular?
Pulumi has 25,840 GitHub stars and wtf has 17,139. Pulumi has the larger community by that measure.
Are Pulumi and wtf free?
Both are open source. Pulumi is licensed under Apache-2.0 and wtf under MPL-2.0. Neither carries a licence fee.
What is the difference between Pulumi and wtf?
Pulumi is written in Go and wtf 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 wtf?
Choose Pulumi if you want the larger community (25,840 stars) or its Apache-2.0 licence terms. Choose wtf if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.