Video Jack (Nuno Correia and André Carrilho) have developed two main applications for VJing: InGrid and B10. Both were built using Adobe Flash. InGrid combines animation sequencing and layering with drag-and-drop visual composition. It aims to make the VJing performance more transparent
to the audience. It uses a content management system for its animations. B10 is mainly a generative visuals application. It makes use of simple graphical elements, replicates them, and attributes to them different types of random behaviors. The user can choose the graphical element and control
parameters of its behavior.