head to head · open source
OpenTofu vs spug
OpenTofu has 30,703 GitHub stars, 1,414 forks, 320 open issues and last shipped yesterday. spug has 11,101 stars, 2,199 forks, 9 open issues and last shipped 7 days ago. OpenTofu leads on adoption by 177% (30,703 vs 11,101 stars). OpenTofu is written in Go under MPL-2.0; spug is written in JavaScript under AGPL-3.0. OpenTofu has attracted 5% as many forks as stars, spug 20%. 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.
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Side by side
| OpenTofu | spug | |
|---|---|---|
| GitHub stars | ★ 31K | ★ 11K |
| License | MPL-2.0 | AGPL-3.0 |
| Written in | Go | JavaScript |
| Last push | 2026-11-02 | 2026-10-27 |
| Forks | ⑂ 1.4K | ⑂ 2.2K |
| 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 spug if
- You want the spug feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and spug 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 spug
English 简体中文 Spug Spug is a lightweight agent free automatic operation and maintenance platform designed for small and medium sized enterprises. It integrates host management, host batch execution, host online terminal, file management, application release and deployment, pipelines, online task planning, configuration center, monitoring, alarm and so on. Demo Demo： The demo environment runs the latest version and resets its data every hour, both the English and the Simplified Chinese interface are available from the globe icon in the header. 🔥Push Assistant Push Assistant is a message push platform that…
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Frequently asked questions
Is OpenTofu or spug more popular?
OpenTofu has 30,703 GitHub stars and spug has 11,101. OpenTofu has the larger community by that measure.
Are OpenTofu and spug free?
Both are open source. OpenTofu is licensed under MPL-2.0 and spug under AGPL-3.0. Neither carries a licence fee.
What is the difference between OpenTofu and spug?
OpenTofu is written in Go and spug in JavaScript. 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 spug?
Choose OpenTofu if you want the larger community (30,703 stars) or its MPL-2.0 licence terms. Choose spug if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.