cvs-fast-export analyzes a collection of RCS files in a CVS repository (or outside of one) and, when possible, emits an equivalent history in the form of a fast-import stream. Not all possible histories can be rendered this way, and the program tries to emit useful warnings when it can't. The program can also produce a visualization of the resulting commit DAG in the DOT format handled by the graphviz suite.
Submin provides a Web-based admin interface to your Subversion and Git repositories. Its features include user/group management, path permission management, the ability to create svn repositories and managing commit email messages. For Subversion, authentication is done with htpasswd/svn authz, so it can use the same login information as apache2/svn (and trac). For Git, ssh is used, and the login information is synched whenever a change is made. The Web interface can also work with NGINX/uWSGI, but the Subversion part only works with Apache.
documentr is a Web-based tool for editing and presenting software documentation. It allows you to easily maintain documentation for multiple products and product branches. Edits can easily be copied between branches, with merge conflicts being handled gracefully. It uses Markdown as its markup language, along with some extensions, and has a role-based permission system.
Gerrit is a Web-based code review system, facilitating online code reviews for projects using the Git version control system. Gerrit makes reviews easier by showing changes in a side-by-side display and allowing inline comments to be added by any reviewer. Gerrit simplifies Git-based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged by hand by the project maintainer. This functionality enables a more centralized usage of Git.
git-flow Python Edition is a a pure Python implementation of git-flow. All sub-commands share a common back-end to ensure features behave the same, whatever branch-type they are working on. New workflow behavior can also be added easily by simply sub-classing existing ones. It also includes a comprehensive unit test suite, decent man pages, and HTML docs.
FishEye opens your source code repository to help you understand your code and keep tabs on the people who write it. It lets you view user activity, track code changes, and search and navigate through your repository from any Web browser. Nearly everything in your repository has its own URL, down to every single line of code for every revision. Files, branches, repositories, projects, and even people have their own activity stream. FishEye provides easy navigation, powerful search, historical reporting, configurable file annotation and diff views, changeset analysis, RSS feeds, and integration with JIRA, Crucible, Bamboo, Eclipse, and IntelliJ IDEA. FishEye works with Subversion, CVS, Perforce, Git or Mercurial.
pepper is a commandline tool for retrieving statistics and generating reports from source code repositories. It ships with several graphical and textual reports, and is easily extensible using the Lua scripting language. It includes support for multiple version control systems, including Git and Subversion.