What are some alternatives?
When comparing git-webui and GitKraken, you can also consider the following products
Gitweb - Gitweb is a git web interface written in Perl.
SmartGit - SmartGit is a front-end for the distributed version control system Git and runs on Windows, Mac OS...
cgit - A hyperfast web frontend for git repositories written in C.
SourceTree - Mac and Windows client for Mercurial and Git.
gitg - gitg is a git repository viewer targeting gtk+/GNOME.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.