Months ago I was searching for a good web front end for git for doing code reviews and browsing repos. My short list ended up being Gitweb and GitLab.
Gitweb is a Perl based web front end for git that is a sub project of the official git project. Out of the box Gitweb is pretty ugly and I have never found it to be very user friendly. Even with all of its problems, it does what it does pretty well.