Git-Repo - Manage Gitlab, GitHub and Bitbucket from the command line
DeepAffects - Increase team dynamics & productivity.
Diff So Fancy - Make Git diffs look good
Gitential - Analytics for Git Repositories
GitPrime - GitPrime uses data from any Git based code repository to give management the software engineering metrics needed to move faster and optimize work patterns.
pre-commit by Yelp - A framework for managing and maintaining multi-language pre-commit hooks