SVN (Subversion)

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.

Mercurial is dedicated to speed and efficiency with a sane user interface. It is written in Python. Mercurial's implementation and data structures are designed to be fast. You can generate diffs between revisions, or jump back in time within seconds.

It is an open-source Version Control System for data science and machine learning projects. It is designed to handle large files, data sets, machine learning models, and metrics as well as code.

It lets you run machine learning models with a few lines of code, without needing to understand how machine learning works.

Plastic SCM is a distributed version control designed for big projects. It excels on branching and merging, graphical user interfaces, and can also deal with large files and even file-locking (great for game devs). It includes "semantic" features like refactor detection to ease diffing complex refactors.

It is a pure JavaScript reimplementation of git that works in both Node.js and browser JavaScript environments. It can read and write to git repositories, fetch from and push to git remotes (such as GitHub), all without any native C++ module dependencies.

It is an interface to the version control system Git, implemented as an Emacs package. It aspires to be a complete Git porcelain. While we cannot (yet) claim that it wraps and improves upon each and every Git command, it is complete enough to allow even experienced Git users to perform almost all of their daily version control tasks directly from within Emacs. While many fine Git clients exist, only deserve to be called porcelains.

Pijul is a free and open source (AGPL 3) distributed version control system. Its distinctive feature is to be based on a sound theory of patches, which makes it easy to learn and use, and really distributed.

Gitless is an experiment to see what happens if you put a simple veneer on an app that changes the underlying concepts. Because Gitless is implemented on top of Git (could be considered what Git pros call a "porcelain" of Git), you can always fall back on Git.

Reflow automatically creates pull requests, ensures the code review is approved, and squash merges finished branches to master with a great commit message template.

BitKeeper is a fast, enterprise-ready, distributed SCM that scales up to very large projects and down to tiny ones.

It is a cross-platform, highly scalable, Git-compatible source control system. It aims to provide both user-friendly and powerful interfaces for users, as well as extreme scalability to deal with repositories containing many millions of files and many millions of commits.

It is a modern, cloud-native version control system. It is built on top of distributed storage and databases, accessible via REST API, and runs on serverless cloud infrastructure. Every repository operation is an API call (commit, branch, merge etc.).