GitHub Package Registry is described as 'Safely publish and consume packages within your organization or with the entire world' and is an website. There are more than 10 alternatives to GitHub Package Registry, not only websites but also apps for a variety of platforms, including Self-Hosted, SaaS, Linux and Windows apps. The best GitHub Package Registry alternative is OSS Rebuild, which is both free and Open Source. Other great sites and apps similar to GitHub Package Registry are Buildstash, Amazon Elastic Container Registry, Artifactory and RepoFlow.