Ralph
Ralph: A flexible self-hosted asset and infrastructure system with a narrower dependency-mapping fit. Ranked #20 of 39 in CMDB Software by our editors (7.2/10); pricing: Open source; best for open-source data-center asset management.
At a glance
- Editor score7.2 / 10
- PricingOpen source
- Best forOpen-source data-center asset management
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Tracks purchases, ownership, lifecycles, services, and environments
- Provides visualization, workflows, custom fields, discovery, and cloud synchronization
- REST API plus OpenStack, AWS, Puppet, and Ansible integrations
Where it doesn't
- Self-hosted deployment requires Ubuntu packages or Docker
- A narrower fit for teams centered on dependency mapping
- Sources-only development is provided without guarantees
Our verdict on Ralph
Ralph is an open-source asset management, data center infrastructure management, and CMDB system from Allegro. It is intended for organizations managing data-center and back-office hardware, with coverage for asset purchases, ownership, lifecycles, services, environments, and deployment context. The web and API interfaces support teams that want to operate the system on premises rather than adopt a hosted service. Its strongest audience is organizations seeking open-source control over infrastructure records and asset lifecycle processes.
Ralph’s feature depth is concentrated around asset operations and data-center management. Built-in visualization helps represent data-center equipment, while configurable lifecycle workflows and transitions support operational processes. Custom fields can be attached to supported object types, and the REST API allows records to be queried and updated. Cloud asset synchronization and a data-center equipment discovery module extend coverage beyond manually maintained inventories. Integrations with OpenStack, AWS, Puppet, and Ansible also make Ralph a practical fit for mixed infrastructure environments.
Deployment and project posture are important considerations. Ralph is designed for self-hosting through Ubuntu packages or Docker, so organizations must provide and maintain the operating environment. The published project model is sources-only and does not provide guarantees, which may matter to buyers seeking a commercially backed service. Ralph should suit teams that prioritize open-source asset lifecycle tracking, visualization, workflows, and API access. Teams whose main requirement is detailed dependency mapping, or who prefer managed deployment and guaranteed support, should consider a different CMDB approach.
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Ralph pricing
Ralph fact sheet
| Free plan | Not verified |
|---|---|
| Paid from | Free |
| Configuration item limit | Not verified |
| Service mapping | Yes |
| Dependency mapping | Not verified |
| Discovery imports | Yes |
| Ownership tracking | Yes |
| Deployment options | On-premises |
| Relationship types | Not verified |
| Deployment | Self-hosted |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: OpenStack, AWS, Puppet, Ansible |
| Pricing | Open source |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Ralph integrations
Ralph lists 4 integrations on its own site.
- OpenStack
- AWS
- Puppet
- Ansible
Alternatives to Ralph
- ServiceNow CMDBA broad, governance-focused CMDB for enterprises managing complex IT environments.9.4
- OpenText Universal Discovery and CMDBA deep hybrid discovery and service-mapping suite for complex enterprise environments.9.2
- BeaverFlow CMDBA broad CMDB with clear paid tiers, service mapping, and hybrid deployment.9.0
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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