Aescripts – Masks to Cropped Layers II Download v2.1 (Win, Mac)
Masks to Cropped Layers II for After Effects is a capable layer management software designed for easy use to improve productivity. This tool makes it possible for every mask to create a new layer, either in the form of a solid or pre-comp, which is accurately set to the size of the mask.
AeScripts – Automatic Whiteboard Download v1.2 for AE (Win, Mac)

With Automatic Whiteboard, sophisticated write-on animations are as easy as 1-2-3 in After Effects. Change text, layers, or masks into animations with easy-to-use controls for animation duration, hand-drawn elements, and wiggle directional effects.