2D hand-drawn animation tool
Download from PortableApps.com
Pencil2D Portable can run from a cloud folder, external drive, or local folder without installing into Windows. It's even better with the PortableApps.com Platform for easy installs and automatic updates.
Pencil2D is lightweight and easy to use so you can focus on animating and not what button to hit next. You can seamlessly switch between raster and vector workflows, allowing you to sketch, ink & paint on the go.