Free 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).
Git
Git is a free and open source distributed version-control system for tracking changes in source code during software development. The tool is created by Linus Torvalds, the creator of Linux, and is used by virtually every software project today. With Git, developer can track changes in any sets of files in a project and coordinate the team to develop in a non-linear workflow to achieve maximum efficiency.
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.
Gitea
Gitea is a free and open-source software package for hosting software development version control using Git The software is written in Go and is a community managed fork of Gogs, released under the MIT license. With Gitea you can host your very own software project collaboration platform that can handle bug tracking, wikis, code review and team communication.
Ungit
Let's face it, Git is not allways easy to use through the command line, especially if you are working across projects and branches. Ungit was created to solve this problem. Ungit is a free and open-source plaform for managing Git visually. Ungit is self-hosted and runs on any platform that supports Node.js and Git. The software also works well with Git platforms such as GitHub and GitLab.
GitLab
A web-based tool for DevOps lifecycle management and source code hosing. GitLab, much like GitHub use the open-source technology Git for repository management and code reversion. On top of that GitLab provide extra services like issue-tracking, wiki and CI/CD pipelines for code deployment. The main difference between GitLab and GitHub is that GitLab is open-source and the whole platform can be self-hosted on your own server. GitLab also provides the same hosted repository solutions provided by GitHub.
GitBucket
GitBucket is a free and open-source Git platform built on the JVM. GitBucket is written in Scala and released under the Apache License Version 2.0.
Gitly
Gitly is a free and open-source git-based source code management tool written in V. The software can be self-hosted affordably with a $3.5 cloud instance. Gitly is light, fast and utlize minimal ammount of RAM, and can be deployed as a single <1 MB binary, including compiled templates.