Sonatype Nexus Repository OSS is an open source repository manager for storing and managing software artifacts in a secure, scalable, and high availability environment. It is used to store and share binary files, such as jars, war, ear, tarball and zip files. It can also be used to store and manage metadata about software components and their dependencies. With Nexus Repository OSS, organizations can easily deploy and manage software artifacts from any environment, including private clouds and public clouds. Nexus Repository OSS provides secure access control to manage who can see, download, and deploy software components. It is also integrated with popular build and deployment tools, such as Jenkins, Maven, and Gradle, allowing developers to use these tools to quickly and easily access and deploy artifacts from the repository.
It is very easy to navigate and has high availability. i would strongly suggest this!
Discontinued Replaced by http://alternativeapp.info/software/private-packagist/
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Lean but powerful and easy to handle repository manager.