Kraken
Distributed container image registry using peer-to-peer technology for efficient large-scale distribution
- Also known as
- kraken
What is Kraken?
A peer-to-peer based Docker registry system designed for high-throughput distribution of container images across large clusters and hybrid cloud environments with built-in support for multi-cluster replication.
Kraken pricing
We don't have Kraken's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Kraken does
The capabilities that matter for container registries, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Hosting
- Self-hosted only
- OCI Distribution Spec compliant
- -
- Artifact types
- Container images only
- Built-in vulnerability scanning
- -
- Image signing (Cosign/Notation)
- -
- SBOM generation / storage
- -
- Fine-grained RBAC / robot accounts
- -
- Private repositories
- ✓
- Geo-replication / mirroring
- ✓
- Pull-through cache / proxy
- -
- Native cloud IAM integration
- -
- Pull-rate limits
- -
- Web UI / console
- -
- High-availability deployment
- ✓
Platform & deployment
Independently observed- CLI
- Cloud / SaaS
- Hybrid
- Self-hosted
Integrations (4)
Independently observed- S3
- GCS
- ECR
- HDFS
Security & compliance
Known vulnerabilities: 1 (0 in the last 12 months), max severity HIGH sourcea count reflects scale & disclosure, not quality
Kraken FAQ
Common questions about Kraken, answered from independent, dated evidence.
What is Kraken?
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. It is indexed under Container Registries.
Source: https://github.com/pricing
Is Kraken free to use?
Kraken 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://github.com/pricing
What platforms does Kraken support?
Kraken supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://github.com/pricing
Can Kraken be self-hosted?
Yes. Kraken can be deployed hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://github.com/pricing
What does Kraken integrate with?
We have confirmed 4 integrations for Kraken, including S3, GCS, ECR and HDFS. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://github.com/pricing
Is Kraken open source?
Yes. Kraken 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/uber/kraken
Kraken alternatives
Other container registries we track, ranked by the same independent score.
- HarborOpen-source container image registry with built-in security, signing, and vulnerability scanning for cloud-native environmentshigh · 78%
- Google Artifact RegistryA hosted repository service for organizing and managing build artifacts and package dependencies across multiple formatsmedium · 54%
- Docker HubA central registry for storing, managing, and sharing container images with your team and the broader developer communityhigh · 75%
- CloudsmithUniversal registry platform with integrated security scanning for managing artifacts across your software supply chainmedium · 52%
- Azure Container RegistryHosted storage for containerized application imagesmedium · 53%
- CNCF DistributionA cloud-hosted registry for discovering, publishing, and managing containerized applicationsmedium · 67%
Compare Kraken
Side by side against other container registries, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Kraken, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Release cadence | 92 | 0.07 | 6.3 | ✓ |
| Capabilities | 58 | 0.09 | 5.0 | ✓ |
| Development activity | 47 | 0.11 | 5.0 | ✓ |
| Security score | 46 | 0.08 | 3.7 | ✓ |
| Stars | 72 | 0.03 | 2.0 | ✓ |
| Integrations | 22 | 0.05 | 1.2 | ✓ |
| Dependent projects | 5 | 0.07 | 0.3 | ✓ |
| Security posture | 5 | 0.18 | 0.0 | - |
| Package downloads | 0 | 0.15 | 0.0 | - |
| Developer Q&A activity | 0 | 0.05 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 29 | mediumsource · 2026-09-11 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 66% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Hosting: self · Private repos: Yes · Artifact types: images · High availability: Yes · Replication mirroring: Yes | mediumsource · 2026-09-14 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-08-13 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Go | highsource · 2026-09-11 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-09-11 · 95% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-03 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Disclosure policy | Yes | mediumsource · 2026-08-03 · 60% |
| Scorecard | 4.6 | highsource · 2026-09-11 · 90% |
| 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 | highsource · 2026-09-11 · 90% |
| Trust center | https://github.com/security/advanced-security/code-security | mediumsource · 2026-09-14 · 60% |
Is Kraken the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Kraken against the rest of the container registries we index, using the same dated evidence weighted your way.
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