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GitLab is a on-premise or hosted Git repository management tool. It also includes code reviews, issue tracking, wikis, and continuous integration.

Trusted by 11,000+ businesses, JIRA is the leading bug tracking, issue tracking and project management tool. JIRA combines issue tracking, agile project management, customisable workflow, and a pluggable integration framework to increase the velocity of your software development team.

GitBucket is the easily installable open-source GitHub clone written with Scala.

Kallithea, a free software source code management system supporting two leading version control systems, Mercurial and Git.

Bugzilla is a "Defect Tracking System" or "Bug-Tracking System". Defect Tracking Systems allow individual or groups of developers to keep track of outstanding bugs in their product effectively. Most commercial defect-tracking software vendors charge enormous licensing fees. Despite being "free", Bugzilla has many features its expensive counterparts lack. Consequently, Bugzilla has quickly become a favorite of hundreds of organizations across the globe.

GitPrep is a GitHub clone. You can install portable Github system into Unix/Linux. You can create users and repositories without limitation. This is free software.

Gitolite allows you to setup git hosting on a central server, with fine-grained access control and many more powerful features.

A hyperfast web frontend for git repositories written in C.

Gitea is a community managed fork of Gogs, lightweight code hosting solution written in Go and published under the MIT license. The code of Gitea is currently hosted on GitHub.

Set up your own self hosted git server on IIS for Windows. Manage users and have full control over your repositories with a nice user friendly graphical interface.