Best Rex Alternatives in 2026
Updated
20 platforms from configuration management tools ranked against Rex on the same published basis.
- 1Rex vs Salt
- 2Rex vs CFEngine
- 3Rex vs config.XO
- 4Rex vs Rudder
- 5Rex vs Uyuni
- 6Rex vs OpenVox
- 7Rex vs OpenDSC
- 8Rex vs Chef Infra
- 9Rex vs Puppet
- 10Rex vs Azure Machine Configuration
- 11Rex vs Fabric
- 12Rex vs AWS Systems Manager State Manager
- 13Rex vs Google Cloud VM Manager
- 14Rex vs OpenText Server Automation
- 15Rex vs Radmind
- 16Rex vs cdist
- 17Rex vs LCFG
- 18Rex vs Microsoft Desired State Configuration
- 19Rex vs pyinfra
- 20Rex vs Quattor
Rex alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Salt | 7.4 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 2 | CFEngine | 7.3 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | config.XO | 7.3 | Free plan | €449/mo | API, Linux, Web, Windows |
| 4 | Rudder | 7.3 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 5 | Uyuni | 7.3 | Free plan | Free | API, Linux, self-hosted, Web |
| 6 | OpenVox | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 7 | OpenDSC | 7.0 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 8 | Chef Infra | 6.9 | No | $4.92/mo | API, Linux, Mac, self-hosted, Windows |
| 9 | Puppet | 6.9 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 10 | Azure Machine Configuration | 5.3 | No | $6/mo | Web |
| 11 | Fabric | 5.3 | No | — | Linux, Mac, Windows |
| 12 | AWS Systems Manager State Manager | 5.2 | Free plan | Free | Linux, Mac, Web, Windows |
| 13 | Google Cloud VM Manager | 5.2 | No | — | Web |
| 14 | OpenText Server Automation | 5.2 | No | — | Linux, Windows |
| 15 | Radmind | 5.2 | No | — | Linux, Mac, Windows |
| 16 | cdist | 5.1 | No | — | Linux, Mac |
| 17 | LCFG | 5.1 | No | — | Linux |
| 18 | Microsoft Desired State Configuration | 5.1 | No | — | Linux, Mac, Windows |
| 19 | pyinfra | 5.1 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 20 | Quattor | 5.1 | No | — | Linux |
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Questions about Rex alternatives
What is the best alternative to Rex?
Salt, number 1 in configuration management tools with a score of 7.4 out of 10. The others here: CFEngine, config.XO, Rudder and 16 more.
What is the best free alternative to Rex?
Salt is the best-ranked alternative with a free plan. 8 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.