Cauldron Cloud - Easy projects reporting
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
Teamwork - The Project Management App for Professionals. The most powerful and simple way to collaborate with your team.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Elegantt for Trello - The most elegant way to manage your Trello projects
GitHub Hovercard - GitHub Hovercard provides neat hovercards for GitHub.