# Kraken vs Pulp

**Leader by Vioscale score:** Kraken

| Attribute | Kraken | Pulp |
|---|---|---|
| **Vioscale score** | 52.6 (76% (high)) | 43.7 (60% (medium)) |
| activity.commits_last_30d | 31 | 49 |
| adoption.dependent_repos | 1 | 65 |
| adoption.github_stars | 6,737 | 586 |
| deployment.options | `{"hybrid":true,"self_hosted":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | Open-source P2P-powered Docker registry designed for scalable and highly available image management, replication, and distribution in hybrid cloud environments with pluggable storage backends. | Pulp enables developers and operators to fetch, upload, organize, and distribute software packages across on-premises infrastructure or cloud environments. It supports multiple content types through a plugin architecture and provides tools for repository management at scale. |
| features.capabilities | `{"hosting":"self","private_repos":true,"artifact_types":"images","high_availability":true,"replication_mirroring":true}` | `{"rbac":false,"web_ui":true,"hosting":"both","sbom_support":false,"image_signing":false,"oci_compliant":true,"private_repos":true,"artifact_types":"universal","cloud_iam_native":false,"pull_rate_limits":"none","high_availability":false,"pull_through_cache":false,"replication_mirroring":false,"vulnerability_scanning":false}` |
| integrations.count | 5 | 2 |
| integrations.list | `[{"name":"S3"},{"name":"GCS"},{"name":"ECR"},{"name":"HDFS"}]` | `[{"name":"OpenAI API"},{"name":"GitHub"}]` |
| language.primary | Go | Python |
| license.spdx | Apache-2.0 | GPL-2.0 |
| market.availability | - | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-13T18:18:11.574Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://pulpproject.org","retrievedAt":"2026-08-16T21:32:46.974Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | 14 | - |
| release.history | `[{"url":"https://github.com/uber/kraken/releases/tag/v0.1.27","date":"2026-07-06T09:38:25Z","type":"stable","version":"v0.1.27"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.26","date":"2026-06-29T12:12:10Z","type":"stable","version":"v0.1.26"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.25","date":"2026-06-22T14:26:47Z","type":"stable","version":"v0.1.25"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.24","date":"2026-06-10T11:12:08Z","type":"stable","version":"v0.1.24"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.23","date":"2026-05-26T11:25:18Z","type":"stable","version":"v0.1.23"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.22","date":"2026-04-14T10:23:31Z","type":"stable","version":"v0.1.22"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.21","date":"2026-03-23T15:50:36Z","type":"stable","version":"v0.1.21"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.20","date":"2026-03-02T12:26:02Z","type":"stable","version":"v0.1.20"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.19","date":"2026-01-26T11:46:01Z","type":"stable","version":"v0.1.19"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.18","date":"2026-01-05T09:55:25Z","type":"stable","version":"v0.1.18"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.17","date":"2025-12-17T10:09:17Z","type":"stable","version":"v0.1.17"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.16","date":"2025-12-08T16:40:34Z","type":"stable","version":"v0.1.16"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.15","date":"2025-11-28T10:16:26Z","type":"stable","version":"v0.1.15"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.14","date":"2025-11-18T12:34:04Z","type":"stable","version":"v0.1.14"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.13","date":"2025-11-10T13:30:12Z","type":"stable","version":"v0.1.13"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.12","date":"2025-10-20T13:49:55Z","type":"stable","version":"v0.1.12"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.11","date":"2025-10-10T12:12:04Z","type":"stable","version":"v0.1.11"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.10","date":"2025-09-23T11:20:24Z","type":"stable","version":"v0.1.10"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.9","date":"2025-09-09T10:56:10Z","type":"stable","version":"v0.1.9"},{"url":"https://github.com/uber/kraken/releases/tag/v0.1.8","date":"2025-08-25T11:47:44Z","type":"stable","version":"v0.1.8"}]` | `[{"url":"https://github.com/pulp/pulpcore/releases/tag/3.116.0","date":"2026-08-12T18:28:59Z","type":"stable","version":"3.116.0"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.105.16","date":"2026-08-12T16:55:30Z","type":"stable","version":"3.105.16"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.85.28","date":"2026-07-29T15:10:38Z","type":"stable","version":"3.85.28"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.63.45","date":"2026-07-29T15:11:51Z","type":"stable","version":"3.63.45"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.49.68","date":"2026-07-29T15:11:41Z","type":"stable","version":"3.49.68"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.115.3","date":"2026-07-28T20:41:04Z","type":"stable","version":"3.115.3"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.105.15","date":"2026-07-28T20:40:51Z","type":"stable","version":"3.105.15"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.105.14","date":"2026-07-28T08:02:29Z","type":"stable","version":"3.105.14"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.85.27","date":"2026-07-28T20:40:30Z","type":"stable","version":"3.85.27"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.73.41","date":"2026-07-28T20:40:26Z","type":"stable","version":"3.73.41"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.63.44","date":"2026-07-28T20:39:47Z","type":"stable","version":"3.63.44"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.49.67","date":"2026-07-28T20:39:20Z","type":"stable","version":"3.49.67"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.105.13","date":"2026-07-27T14:15:34Z","type":"stable","version":"3.105.13"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.115.2","date":"2026-07-22T12:50:08Z","type":"stable","version":"3.115.2"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.115.1","date":"2026-07-21T17:06:56Z","type":"stable","version":"3.115.1"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.115.0","date":"2026-07-21T15:16:40Z","type":"stable","version":"3.115.0"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.114.2","date":"2026-07-20T17:19:08Z","type":"stable","version":"3.114.2"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.105.12","date":"2026-07-20T17:20:16Z","type":"stable","version":"3.105.12"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.85.26","date":"2026-07-20T17:20:28Z","type":"stable","version":"3.85.26"},{"url":"https://github.com/pulp/pulpcore/releases/tag/3.73.40","date":"2026-07-20T17:21:51Z","type":"stable","version":"3.73.40"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | - | yes |
| security.scorecard | 4.6 | - |
| security.vulnerabilities | `{"count":1,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fuber%2Fkraken&per_page=100","last_12m":0,"max_severity":"HIGH"}` | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=pulpcore&per_page=100","last_12m":0,"max_severity":"HIGH"}` |

## Capabilities (Container Registries)

| Capability | Kraken | Pulp |
|---|:--:|:--:|
| **Deployment** |  |  |
| Hosting | Self-hosted only | Cloud + self-hosted |
| **Standards** |  |  |
| OCI Distribution Spec compliant | - | ✓ |
| **Scope** |  |  |
| Artifact types | Container images only | Universal (images + language packages) |
| **Security** |  |  |
| Built-in vulnerability scanning | - | ✗ |
| Image signing (Cosign/Notation) | - | ✗ |
| SBOM generation / storage | - | ✗ |
| **Access** |  |  |
| Fine-grained RBAC / robot accounts | - | ✗ |
| Private repositories | ✓ | ✓ |
| **Distribution** |  |  |
| Geo-replication / mirroring | ✓ | ✗ |
| Pull-through cache / proxy | - | ✗ |
| **Integration** |  |  |
| Native cloud IAM integration | - | ✗ |
| **Pricing** |  |  |
| Pull-rate limits | - | None |
| **UX** |  |  |
| Web UI / console | - | ✓ |
| **Ops** |  |  |
| High-availability deployment | ✓ | ✗ |

*Source: Vioscale. Generated 2026-09-01T14:56:45.777Z. "-" = undocumented, not absent.*