Best Free Container Registries in 2026

BY TOOLS.FUN · MARCH 28, 2026 · 4 min read

Every containerized application needs a registry to store and distribute images. The right registry depends on your team size, privacy requirements, and existing toolchain. Here are the best free container registries, from managed services to self-hosted solutions.

Docker Hub — The Default Registry

Docker Hub is the world's largest container registry and the default pull source for docker pull commands. The free tier includes unlimited public repositories and one private repository. Docker Hub's automated builds can trigger image builds from GitHub/Bitbucket commits. The main limitation: the free tier has pull rate limits (100 pulls per 6 hours for anonymous users, 200 for authenticated). For open-source projects, Docker Hub's Sponsored Open Source program removes all limits.

Best for: open-source projects and public images where discoverability matters.

GitHub Container Registry (GHCR) — Integrated with GitHub

GHCR stores container images alongside your code in GitHub. Permissions inherit from your repository settings — if someone can read your repo, they can pull your images. The free tier includes 500 MB of storage and 1 GB of bandwidth per month for private images; public images have no limits. The killer feature: GitHub Actions can build and push images to GHCR without any external credentials, using the built-in GITHUB_TOKEN.

Tip: Automate your image tagging strategy. Use semantic versioning and Git SHA tags. Validate your CI/CD pipeline configuration with our JSON Formatter when working with GitHub Actions workflow JSON payloads.

Quay.io — Red Hat's Enterprise Registry

Quay.io (by Red Hat) offers unlimited public repositories with built-in vulnerability scanning (powered by Clair). The security scanning is the standout feature — every pushed image is automatically analyzed for known CVEs, and the results are visible in the Quay UI. The free tier is generous for open-source projects. Quay also supports image signing with cosign for supply chain security.

Harbor — Self-Hosted Enterprise Registry

Harbor is a CNCF-graduated project for self-hosted container registries. It adds vulnerability scanning (Trivy integration), RBAC, image signing, replication across registries, and audit logging on top of a Docker-compatible registry. Harbor is the go-to choice for organizations that need to keep images on-premises or in a private cloud. It runs in Docker or Kubernetes and supports Helm chart storage alongside container images.

Amazon ECR Public & Google Artifact Registry

AWS ECR Public provides a free public registry with a CDN-backed pull experience — fast image downloads globally. Google Artifact Registry offers container image storage integrated with GCP's IAM and Cloud Build. Both are excellent if you're already in their respective cloud ecosystems, but they add vendor lock-in that the other options avoid.

Tip: Always scan images for vulnerabilities before pushing to production registries. Use multi-stage Docker builds to minimize image size. Check your Dockerfile COPY paths and build arguments using our Base64 Encoder for any secrets that need encoding in build pipelines.

Registry Selection Guide

For public open-source images: Docker Hub. For GitHub-native workflows: GHCR. For built-in vulnerability scanning: Quay.io. For self-hosted control: Harbor. For cloud-native teams: your cloud provider's registry. Many teams use Docker Hub for public base images and GHCR or Harbor for private application images.

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