Private npm packages without shipping code to the public registry or paying for npm Enterprise: Verdaccio is the standard lightweight, zero-config private registry and caching proxy. It runs as a single Node.js process with its own tiny embedded database; no external database is required to start. Point npm, yarn, or pnpm at it and everything behaves as expected: install, publish, unpublish, dist-tags, and deprecation all work against the standard npm endpoints. The uplink system is where it earns its keep: packages not found locally are fetched from configured upstreams (npmjs.org, yarn, JFrog, Nexus, or another Verdaccio), cached as tarballs, and served locally thereafter - cutting CI latency and surviving registry outages. Multiple uplinks chain for failover, and per-package glob patterns in config.yaml route scopes to specific upstreams while controlling access, publish, and unpublish rights per group. You can even override a public package by publishing a patched version under the same name locally. A plugin architecture swaps in auth backends (htpasswd default, LDAP and others available), storage drivers (S3, Google Cloud Storage), middleware routes, and metadata filters. With official Docker images and a Kubernetes Helm chart, it slots into any pipeline in minutes.

One trusted home for every package your build pipeline consumes: kkRepo hosts, proxies, and groups artifacts for Maven, npm, PyPI, Docker and OCI, Helm, Cargo, Go, NuGet, Composer, Terraform, Conda, APT, Conan, RubyGems, Yum, and more than twenty formats in total. Point your existing Nexus clients at it and nothing changes, because repository domains, the /repository/ URL layout, and the permission model carry over, and a one-click migration moves hosted data while clients keep building. Upstream proxies can be tuned per repository with their own outbound proxy and credentials, group repositories present many sources as one endpoint, and cleanup policies retire old artifacts before disks fill. Every stored artifact can be scanned against known vulnerabilities with SBOM generation and download enforcement, while Local, LDAP, and OIDC sign-in with fine-grained permissions decides who may publish or pull. Prometheus metrics and ready Grafana dashboards show throughput and storage, and multi-replica deployments share state through MySQL or PostgreSQL with blobs in S3-compatible storage. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache 2.0 licensed.

Trusted by millions of developers and integrated into CI/CD pipelines at organizations worldwide, Sonatype Nexus Repository is the industry-standard binary artifact repository manager that stores, organizes, and distributes software components across every major package ecosystem. Community Edition supports over 20 formats including Maven for Java builds, npm for JavaScript packages, Docker for container images, PyPI for Python libraries, NuGet for .NET assemblies, Helm for Kubernetes charts, Go modules, RubyGems, Cargo for Rust crates, Conda for data science environments, APT for Debian packages, Yum for RPM distributions, and Hugging Face for AI/ML models. Three repository types serve different needs: hosted repositories store internally-produced artifacts, proxy repositories cache remote registries like Maven Central, npmjs.org, and Docker Hub reducing bandwidth and improving build reliability, and group repositories aggregate multiple hosted and proxy repositories behind a single URL endpoint. The web UI provides component browsing and search, repository configuration, blob store management with configurable cleanup policies, and direct artifact upload via drag-and-drop. Role-based access control enforces fine-grained permissions per repository with configurable security realms, while the comprehensive REST API enables automated repository provisioning, component management, and integration with Jenkins, GitHub Actions, GitLab CI, and Azure DevOps. External PostgreSQL database support enables Kubernetes deployments with improved backup, restore, and horizontal scaling capabilities. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Eclipse Public License 1.0 licensed.