# Rex vs Salt

**Leader by vioscaleAI score:** Salt

| Attribute | Rex | Salt |
|---|---|---|
| **vioscaleAI score** | 35.3 (39% (low)) | 53.3 (76% (high)) |
| activity.commits_last_30d | 0 | 100 |
| adoption.dependent_repos | 8 | 0 |
| adoption.github_stars | 737 | 15,714 |
| adoption.package_downloads_weekly | - | 29,742 |
| content.faq | `[{"answer":"Rex is an open-source framework that lets you automate infrastructure management and task execution using Perl code. It supports both local and remote execution via SSH, push and pull management styles, and both imperative and declarative approaches, giving you flexibility in how you build your automation. It is indexed under Configuration Management Tools.","source":"https://www.rexify.org/","question":"What is Rex?","confidence":0.6},{"answer":"Rex is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://www.rexify.org/","question":"Is Rex free to use?","confidence":0.6},{"answer":"Rex supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.rexify.org/","question":"What platforms does Rex support?","confidence":0.6},{"answer":"Yes. Rex can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.rexify.org/","question":"Can Rex be self-hosted?","confidence":0.6}]` | `[{"answer":"An open-source framework that allows teams to automate and manage thousands of systems from a central control plane. It provides remote command execution, configuration management, and infrastructure orchestration capabilities through a master-minion agent architecture. It is indexed under Configuration Management Tools.","source":"https://saltproject.io","question":"What is Salt?","confidence":0.6},{"answer":"Salt is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://saltproject.io","question":"Is Salt free to use?","confidence":0.6},{"answer":"Salt supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://saltproject.io","question":"What platforms does Salt support?","confidence":0.6},{"answer":"Yes. Salt can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://saltproject.io","question":"Can Salt be self-hosted?","confidence":0.6},{"answer":"Yes. Salt is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/saltstack/salt","question":"Is Salt open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Rex is an open-source framework that lets you automate infrastructure management and task execution using Perl code. It supports both local and remote execution via SSH, push and pull management styles, and both imperative and declarative approaches, giving you flexibility in how you build your automation. | A Python-based automation tool and framework designed to deploy, configure, and manage complex IT infrastructure systems, supporting multiple operating systems and maintaining consistent desired state across infrastructure components. |
| features.capabilities | `{"model":"both","hosting":"self","language":"Perl","idempotent":true,"architecture":"agentless","desired_state":true,"masterless_mode":true,"windows_support":false,"open_source_core":true}` | `{"model":"pull","hosting":"self","architecture":"agent","desired_state":true,"windows_support":true,"open_source_core":true,"cloud_provisioning":true,"enterprise_edition":false}` |
| integrations.count | - | 1 |
| integrations.list | - | `[{"name":"Bitnami"}]` |
| language.primary | Perl | Python |
| license.spdx | - | Apache-2.0 |
| platform.support | `{"cli":true,"linux":true}` | `{"cli":true,"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://www.rexify.org/","retrievedAt":"2026-09-14T15:31:16.909Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://saltproject.io","retrievedAt":"2026-10-13T15:11:26.897Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 6 |
| release.history | - | `[{"url":"https://github.com/saltstack/salt/releases/tag/v3008.3","date":"2026-09-30T21:19:42Z","type":"stable","version":"v3008.3"},{"url":"https://github.com/saltstack/salt/releases/tag/v3007.15","date":"2026-09-30T21:12:34Z","type":"stable","version":"v3007.15"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.28","date":"2026-09-30T20:55:21Z","type":"stable","version":"v3006.28"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.1-2","date":"2026-07-26T01:32:20Z","type":"stable","version":"v3008.1-2"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.1-1","date":"2026-07-23T19:43:15Z","type":"stable","version":"v3008.1-1"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.2","date":"2026-07-01T19:37:49Z","type":"stable","version":"v3008.2"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.27","date":"2026-07-01T18:54:23Z","type":"stable","version":"v3006.27"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.26","date":"2026-06-24T17:16:34Z","type":"stable","version":"v3006.26"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.1","date":"2026-06-11T14:41:31Z","type":"stable","version":"v3008.1"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.0","date":"2026-05-27T10:36:40Z","type":"stable","version":"v3008.0"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.0rc4","date":"2026-05-15T17:27:10Z","type":"stable","version":"v3008.0rc4"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.0rc3","date":"2026-05-13T16:48:46Z","type":"stable","version":"v3008.0rc3"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.25","date":"2026-05-13T16:42:11Z","type":"stable","version":"v3006.25"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.0rc2","date":"2026-05-06T18:22:06Z","type":"stable","version":"v3008.0rc2"},{"url":"https://github.com/saltstack/salt/releases/tag/v3007.14","date":"2026-04-29T18:00:27Z","type":"stable","version":"v3007.14"},{"url":"https://github.com/saltstack/salt/releases/tag/v3008.0rc1","date":"2026-04-23T23:59:27Z","type":"stable","version":"v3008.0rc1"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.24","date":"2026-04-23T22:26:43Z","type":"stable","version":"v3006.24"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.23","date":"2026-02-23T21:17:26Z","type":"stable","version":"v3006.23"},{"url":"https://github.com/saltstack/salt/releases/tag/v3006.22","date":"2026-02-22T02:37:56Z","type":"stable","version":"v3006.22"},{"url":"https://github.com/saltstack/salt/releases/tag/v3007.13","date":"2026-02-12T23:09:14Z","type":"stable","version":"v3007.13"}]` |
| reliability.status_page | yes | yes |
| security.scorecard | - | 4.8 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=cpan&package_name=Rex&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=alpine&package_name=salt-syndic&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Configuration Management Tools)

| Capability | Rex | Salt |
|---|:--:|:--:|
| **Core** |  |  |
| Architecture | Agentless / SSH-push | Agent-based |
| Push / pull model | Both | Pull |
| Config language | Perl | - |
| **Deployment** |  |  |
| Masterless mode | ✓ | - |
| Hosting | Self-hosted only | Self-hosted only |
| **Correctness** |  |  |
| Idempotent | ✓ | - |
| **Model** |  |  |
| Desired-state declarative | ✓ | ✓ |
| **Ecosystem** |  |  |
| Content registry | - | - |
| **Platform** |  |  |
| Windows support | ✗ | ✓ |
| **Scope** |  |  |
| Cloud provisioning | - | ✓ |
| **Governance** |  |  |
| Policy / compliance | - | - |
| **Commercial** |  |  |
| Enterprise edition | - | ✗ |
| **Licensing** |  |  |
| Open-source core | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T07:10:23.823Z. "-" = undocumented, not absent.*