MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
TiddlyWiki - a non-linear personal web notebook
SourceTree - Mac and Windows client for Mercurial and Git.
Confluence - Confluence is content collaboration software that changes how modern teams work
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.