Best Rex Alternatives in 2026
Updated
20 tools from configuration management tools ranked against Rex on the same published basis.
- 1Rex vs CFEngine
- 2Rex vs Rudder
- 3Rex vs Salt
- 4Rex vs Puppet
- 5Rex vs AWS Systems Manager State Manager
- 6Rex vs Chef Infra
- 7Rex vs OpenDSC
- 8Rex vs OpenVox
- 9Rex vs pyinfra
- 10Rex vs config.XO
- 11Rex vs Uyuni
- 12Rex vs OpenText Dimensions CM
- 13Rex vs Fabric
- 14Rex vs Radmind
- 15Rex vs Azure Machine Configuration
- 16Rex vs Microsoft Desired State Configuration
- 17Rex vs OpenText Server Automation
- 18Rex vs Google Cloud VM Manager
- 19Rex vs cdist
- 21Rex vs LCFG
Rex alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | CFEngine | 7.8 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 2 | Rudder | 7.6 | Free plan | Free | API, Linux, self-hosted, Web, Windows |
| 3 | Salt | 7.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 4 | Puppet | 7.4 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 5 | AWS Systems Manager State Manager | 7.3 | Free plan | Free | Linux, Mac, Web, Windows |
| 6 | Chef Infra | 7.3 | No | $4.92/mo | API, Linux, Mac, self-hosted, Windows |
| 7 | OpenDSC | 7.2 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 8 | OpenVox | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 9 | pyinfra | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 10 | config.XO | 7.1 | Free plan | €449/mo | API, Linux, Web, Windows |
| 11 | Uyuni | 7.0 | Free plan | Free | API, Linux, self-hosted, Web |
| 12 | OpenText Dimensions CM | 6.6 | No | — | API, Linux, Mac, self-hosted, Windows |
| 13 | Fabric | 6.5 | No | — | Linux, Mac, Windows |
| 14 | Radmind | 6.3 | No | — | Linux, Mac, Windows |
| 15 | Azure Machine Configuration | 6.2 | No | $6/mo | Web |
| 16 | Microsoft Desired State Configuration | 6.2 | No | — | Linux, Mac, Windows |
| 17 | OpenText Server Automation | 6.2 | No | — | Linux, Windows |
| 18 | Google Cloud VM Manager | 6.0 | No | — | Web |
| 19 | cdist | 5.9 | No | — | Linux, Mac |
| 21 | LCFG | 5.8 | No | — | Linux |
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Questions about Rex alternatives
What is the best alternative to Rex?
CFEngine, number 1 in configuration management tools with a score of 7.8 out of 10. The others here: Rudder, Salt, Puppet and 16 more.
What is the best free alternative to Rex?
CFEngine 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, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.