head to head · open source
OpenTofu vs wasm3
OpenTofu has 30,703 GitHub stars, 1,414 forks, 320 open issues and last shipped yesterday. wasm3 has 8,077 stars, 536 forks, 18 open issues and last shipped 1 months ago. OpenTofu leads on adoption by 280% (30,703 vs 8,077 stars). OpenTofu is written in Go under MPL-2.0; wasm3 is written in C under MIT. OpenTofu has attracted 5% as many forks as stars, wasm3 7%. OpenTofu 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.
← all 20902 open source comparisons
Side by side
| OpenTofu | wasm3 | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 8.1K |
| License | MPL-2.0 | MIT |
| Written in | Go | C |
| Last push | 2026-11-02 | 2026-09-30 |
| Forks | ⑂ 1.4K | ⑂ 536 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenTofu if
- You weight community size — 31K stars and counting
- You want the MPL-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 OpenTofu
Homepage Slack Get Started OpenTofu is an OSS tool for building, changing, and versioning infrastructure safely and efficiently. OpenTofu can manage existing and popular service providers as well as custom in house solutions. Getting help and contributing Have a question? Post it in GitHub Discussions Open a GitHub issue Join us in the opentofu channel on the CNCF Slack! Want to contribute? Please read the Contribution Guide. Recurring Events Community Meetings on Wednesdays at 12:30 UTC (calendar) Technical Steering Committee Meetings every other Tuesday at 4pm UTC (calendar) [!TIP] For more OpenTofu events…
read the full OpenTofu 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 →
More in Infrastructure & Operations
Related comparisons
More Cloud Infrastructure Management projects
Compare either of these against the rest of the Cloud Infrastructure Management field.
Frequently asked questions
Is OpenTofu or wasm3 more popular?
OpenTofu has 30,703 GitHub stars and wasm3 has 8,077. OpenTofu has the larger community by that measure.
Are OpenTofu and wasm3 free?
Both are open source. OpenTofu is licensed under MPL-2.0 and wasm3 under MIT. Neither carries a licence fee.
What is the difference between OpenTofu and wasm3?
OpenTofu 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, OpenTofu or wasm3?
Choose OpenTofu if you want the larger community (30,703 stars) or its MPL-2.0 licence terms. Choose wasm3 if its feature set, stack or MIT licence fits better. Both are self-hostable.