What are some alternatives?
When comparing TortoiseGit and git-webui, you can also consider the following products
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
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.
Gitea - A painless self-hosted Git service