Apps similar to Codeology include Gource, which is free and open source. Other options are keifu, Git Visualizer, CodeFlower and GitHub Visualizer. In total there are seven apps like Codeology for the web, self-hosting, Mac, Windows and Linux.
Software projects are displayed by Gource as an animated tree with the root directory of the project at its centre. Directories appear as branches with files as leaves. Developers can be seen working on the tree at the times they contributed to the project.
New Zealand
Provides an at-a-glance overview of the repository structure. Finer details can be explored via zooming and tooltips. It makes exploring large and complex projects a breeze.
CodeFlower visualizes source repositories using an interactive tree. Each disc represents a file, with a radius proportional to the number of lines of code (loc). All rendering is done client-side, in JavaScript.
France
EU
Repography is a web app which creates data visualizations for your Git repos. You can use our command line script to try out Repography on any Git repo, or install GitHub app.
Japan
