IMG.LY Video Editor SDK - Build modern video editing into your iOS, Android or web app.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
Vixeo - Vixeo is a fun, fast, and easy to use augmented reality movie maker that allows you to easily capture short clips with virtual characters.
Synfig Studio - Just another WordPress site
Flo - Voice based video editing app powered by A.I & Deep Learning
Blender - Blender is the open source, cross platform suite of tools for 3D creation.