Proprietary Source Code Management Software
GitKraken
Unleash the power of Git with GitKraken, the free Git GUI for Windows, Mac & Linux. With GitKraken you can easily work with repositories hosted on any of these sites. Clone, add remotes, and create/open pull requests without ever leaving the application. GitKraken is an open-source project released as two versions, GitKraken Free and GitKraken Pro. The free version works with major platforms like GitHub, GitLab, Bitbucket while providing extra features in the pro version to work with GitHub Enterprise, GitLab Self-Managed, Bitbucket Server, and Azure DevOps (VSTS).
Fork
Fork is a fast and friendly Git client for Mac and Windows. It provides an intuitive and easy-to-use interface for all your git work flow. Including an advanced diff viewer that provides a clear view to spot the changes in your source code quickly. A repository manager that lets you manage your repositories without leaving the application, and organize them into categories. As well as image diffs support common formats, and interactive rebasing that lets you edit, reorder and squash your commits using visual interface.
Bitbucket
With Bitbucket developers and teams can collaborate better on software projects. BitBucket is a web-based version control repository hosting service owned by Atlassian. The software is a suite of tools built on-top of the free and open-source Git repoitory management and version control system. Bitbucket provides features that developers can use to build, test and deploy code with integrated CI/CD.
Github
GitHub is a platform that provides hosting for software development version control for open source and closed source projects. The platform utilize the revision control system Git, and build services around this open-source technology. With GitHub developers and teams can collaborate on software projects and build, host, and promote source code of their own open-source projects. GitHub itself is closed-source and was acquired by Microsoft in 2018 for US$7.5 billion.