Sourcegraph : Sourcegraph Server is a free, self-hosted code search server that integrates with your code host and supports multi-repository, regexp, and diff searc...
git-deploy : Straightforward, Heroku-style, push-based deployment. Your deploys can become as simple as this:
$ git push production master
Weblate : Weblate is a free web-based translation tool with tight Git integration. It features simple and clean user interface, propagation of translations acro...
Git Extensions is the only graphical user interface for Git that allows you control Git without using the commandline. It comes with a manual and video tutorials to get you started quickly.