An add-on for Atlassian Bitbucket Server.
Main website: http://bit-booster.com/
Atlassian Marketplace: https://marketplace.atlassian.com/plugins/com.bit-booster.bb
Project site (bug tracker, wiki, etc): https://bitbucket.org/gsylviedavies/bit-booster-with-commit-graph-and-more
Offline commit graph drawing: http://bit-booster.com/graph.html (Quite fun!)