GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
SourceTree - Mac and Windows client for Mercurial and Git.
Wiki.js - An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.
TiddlyWiki - a non-linear personal web notebook