Docker Hub's pull rate limits and tightened free-tier terms have teams looking elsewhere. We compare Google Artifact Registry, Azure Container Registry, and GitLab Self-Managed to help you pick the right registry for your stack.
Docker Hub's free tier has gotten noticeably tighter. Anonymous pulls are capped at 100 per 6 hours per IP, and authenticated free accounts get 200 pulls per 6 hours34. Inactive free-tier images are also subject to deletion3. If you're behind a shared NAT — say, a CI runner or an office network — those limits compound fast4.
The good news: there are solid alternatives that fit different stacks. Here's how to think about which one is right for you.
The rate limits are the most visible pain point, but they're not the only one4. Free-tier image retention policies mean images can disappear if they go unused3. Granular access control for commercial distribution is limited. And supply-chain security features like SBOM generation and image signing are increasingly expected but not fully available on the free tier.
Common mitigations include authenticating your pulls, setting up a registry mirror or pull-through cache, and copying base images into your own registry4. But at some point, it's simpler to just move to a registry that's built for your use case.
Google Artifact Registry is the successor to Google Container Registry, and it goes well beyond containers. It supports Docker images alongside Maven, npm, and OS packages in a single registry1. You get regional and multi-regional repository options, customer-managed encryption keys (CMEK), and built-in vulnerability scanning1.
The real draw is integration: if you're deploying to GKE or Cloud Run, GAR is the path of least resistance2. Push and pull happen within Google's network, which keeps latency low and data-transfer costs predictable.
Verdict: If your infrastructure lives in Google Cloud, this is the obvious choice. The multi-format support is a bonus if you also need to store non-container artifacts.
Azure Container Registry is OCI v1.1 compliant and supports geo-replication across Azure regions1. ACR Tasks let you automate image builds and patching directly within the registry, and Azure AD integration gives you RBAC that ties into your existing identity stack.
One standout feature: cache rules let you proxy Docker Hub through ACR, which means your pulls hit Azure's cache instead of Docker Hub's rate-limited endpoints1. That's a practical way to sidestep rate limits without fully migrating.
Verdict: If you're already in the Azure ecosystem, ACR's identity integration and Docker Hub proxying make it a natural fit.
GitLab's container registry is self-hostable and couples tightly with GitLab CI/CD — every project gets its own space to store Docker images5. The next-generation registry, available for self-managed instances, adds online garbage collection and significant performance and reliability improvements5. OCI compliance is still in progress1.
This is the pick for teams who want a unified platform: source control, CI/CD, and container registry in one place. The trade-off is that you're running it yourself, which means you own the operational overhead.
Verdict: If you're already on GitLab and want to consolidate your toolchain, the built-in registry keeps everything under one roof.
| Dimension | Google Artifact Registry | Azure Container Registry | GitLab Self-Managed |
|---|---|---|---|
| Pricing model | Pay-as-you-go (storage + transfer) | Pay-as-you-go (storage + transfer) | Free + self-hosted |
| Deployment | Fully managed | Fully managed | Self-hosted |
| Security | Scanning, CMEK, IAM | Scanning, Azure AD/RBAC, signing | Scanning (basic), RBAC |
| Ecosystem lock-in | GCP | Azure | GitLab |
A few registries came up in research that aren't covered in detail here but are worth a look depending on your situation:
Start with where your infrastructure already lives. If you're on GCP, GAR. If you're on Azure, ACR. If you're on AWS, ECR. If you're on GitLab and want to keep things in one platform, use the built-in registry. If you want open-source and self-hosted with maximum control, look at Harbor.
The Docker Hub rate limits aren't going away4, and the free-tier retention policies mean relying on it for anything production-critical is risky3. Moving to a registry that's integrated with your existing stack is the most reliable long-term fix.
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