Adobe Animate - Adobe Animate is a Flash, vector animation software.
JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
SWiSH Max - SWiSH Max is a Flash creation tool that is commonly used to create interactive and cross-platform...
Allegro - Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia...
Toonz - Toonz is a reliable 2D animation software that comes with various features and functions that made it a sumptuous choice to be used either as raster and vector-based.
Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.