SourceForge is described as 'Open source community and software directory offering code hosting, analytics, version control, project management, and access to over 50,000 business titles' and is a very popular Version Control system in the development category. There are more than 50 alternatives to SourceForge, not only websites but also apps for a variety of platforms, including Self-Hosted, Linux, Mac and Windows apps. The best SourceForge alternative is GitHub, which is free. Other great sites and apps similar to SourceForge are GitLab, Codeberg, Gitea and Forgejo.
Peer-to-peer, open source stack built on Git enables decentralized, censorship-resistant code sharing and local-first data control, employing cryptographic verification, extensible collaborative objects, modular interfaces, and seamless data migration with no central entity.
Launchpad is a collaboration and Bazaar code hosting platform for (primarily open-source) software projects.
Software Informer is a programme, whose primary aim is to give you the up-to-date information about the software you actually use. Whenever a more recent version of any programme becomes available, Software Informer notifies you and offers a link for downloading the update.
It is not related to code versioning control
Free software repository which includes reviews, mirrors and details about a number of programs. Includes the results of extensive virus tests.
Phorge is an open source, community driven platform for collaborating, managing, organizing and reviewing software development projects.
Continuous Delivery Services for teams to share code, track work, and ship software – for any language, all in a single package.
Free private Git repositories, pull requests, and code search. Get unlimited private Git repository hosting and support for TFVC that scales from a hobby project to the world’s largest repository.
Apache Allura is an open source implementation of a software forge, a web site that manages source code repositories, bug reports, discussions, wiki pages, blogs, and more for any number of individual projects.
Cloud Source Repositories helps you privately host, track, and manage changes to large codebases on Google Cloud Platform.
Fast and powerful management tool for SVN, Mercurial, and GIT with a built in push/pull server and full text search and code-review. It works on http/https and has a built in permission/authentication system with the ability to authenticate via LDAP or ActiveDirectory.
An all-in-one DevOps platform combining issue tracking, Git/SVN repositories, wikis, CI/CD, and release management—available as SaaS or on-premise for teams that want one integrated solution.
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It has free PPA's for software.