TreeSize - TreeSize tells you where precious disk space has gone to.
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
Droid Transfer - Save and Print your Android Phone Messages, Manage Photos, Music and other files on your Android Phone through your PC. Android Transfer Software.
Zube - Project management for developers.