Pencil Project : Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in p...
DBeaver : Free multi-platform database tool for developers, SQL programmers, database administrators and analysts. Supports all popular databases: MySQL, Postgr...
Git Extensions is the only graphical user interface for Git that allows you control Git without using the commandline. It comes with a manual and video tutorials to get you started quickly.