OpenShot is an easy to use yet powerful video editor for Windows, macOS and Linux. It features powerful curve-based key frame animations, unlimited tracks / layers, clip resizing, scaling, trimming, snapping, rotation and cutting. Using it you can also add video transitions with real-time previews, compositing, image overlays, watermarks, animated 3D titles and effects, and much more.
The application makes use of the FFmpeg library, being able to read and write most video and image formats.