Best Rex Alternatives in 2026
Updated
20 apps from configuration management tools ranked against Rex on the same published basis.
- 1Rex vs AWS Systems Manager State Manager
- 2Rex vs CFEngine
- 3Rex vs Rudder
- 4Rex vs Salt
- 5Rex vs config.XO
- 6Rex vs Google Cloud VM Manager
- 7Rex vs OpenVox
- 8Rex vs pyinfra
- 9Rex vs Quattor
- 10Rex vs Uyuni
- 11Rex vs OpenDSC
- 12Rex vs Chef Infra
- 13Rex vs Puppet
- 14Rex vs Fabric
- 15Rex vs OpenText Dimensions CM
- 16Rex vs LCFG
- 17Rex vs Radmind
- 18Rex vs Azure Machine Configuration
- 19Rex vs Microsoft Desired State Configuration
- 20Rex vs OpenText Server Automation
Rex alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | AWS Systems Manager State Manager | 6.6 | Free plan | Free | Linux, Mac, Web, Windows |
| 2 | CFEngine | 6.6 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | Rudder | 6.6 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 4 | Salt | 6.6 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 5 | config.XO | 6.5 | Free plan | €449/mo | API, Linux, Web, Windows |
| 6 | Google Cloud VM Manager | 6.5 | Free plan | Free | API, Linux, Web, Windows |
| 7 | OpenVox | 6.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 8 | pyinfra | 6.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 9 | Quattor | 6.4 | Free plan | Free | Linux, self-hosted |
| 10 | Uyuni | 6.4 | Free plan | Free | API, Linux, self-hosted, Web |
| 11 | OpenDSC | 5.7 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 12 | Chef Infra | 5.6 | No | $4.92/mo | API, Linux, Mac, self-hosted, Windows |
| 13 | Puppet | 5.6 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 14 | Fabric | 5.5 | No | — | Linux, Mac, Windows |
| 15 | OpenText Dimensions CM | 5.5 | No | — | API, Linux, Mac, self-hosted, Windows |
| 16 | LCFG | 5.4 | Free plan | Free | Linux, self-hosted |
| 17 | Radmind | 5.4 | No | — | Linux, Mac, Windows |
| 18 | Azure Machine Configuration | 5.3 | No | $6/mo | Web |
| 19 | Microsoft Desired State Configuration | 5.3 | No | — | Linux, Mac, Windows |
| 20 | OpenText Server Automation | 5.3 | No | — | Linux, Windows |
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Questions about Rex alternatives
What is the best alternative to Rex?
AWS Systems Manager State Manager, number 1 in configuration management tools with a score of 6.6 out of 10. The others here: CFEngine, Rudder, Salt and 16 more.
What is the best free alternative to Rex?
AWS Systems Manager State Manager is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.