Bodymovin
freemiumExport After Effects animations as JSON for web playback with Lottie
Best Free & Freemium Starter Kit
The strongest no-cost tools to build a real After Effects workflow, ideal for students and designers just getting serious.
6 tools 
Flow
freemiumModern curve editor for customizing keyframe easing in After Effects
Ease and Wizz
freemiumApply advanced easing equations to keyframes with one click
Animation Composer
freemiumFree motion preset library with 100+ animations, transitions, and sounds
True Comp Duplicator
freemiumDuplicate entire comp hierarchies with sub-comps in one click
TypeMonkey
freemiumGenerates animated kinetic typography layouts with marker-based timing