There are many scripts in wide adobe aftereffect  and animation world which the animators use them.
In this article, we choose the top 10 scripts for Adobe Aftereffect for you, lets start

1. K Bar

Create custom toolbars unique to your workflows. Save time and clicks by putting your most used effects, presets and more at your fingertips. Multiple toolbars let you switch between different tasks and keep your productivity up. Focus on creativity, not digging through menus.

2. Eaze and wizz

Ease and Wizz is a set of expressions for After Effects that give you more ways to interpolate between values. The obvious use is in motion, but they can be used on animated properties of any kind. They’re applied with an After Effects-ish palette that can be docked, so it’s very easy to use.

3. Easy Bake

Convert expressions to keyframes faster, simpler and with more control than ever before.
Slow project file with lots of expressions? Easy Bake it!

4. Animation Composer

Animation Composer is a huge library of adjustable motion presets, precomps and sounds. There is a lot of additional handy features to save you a ton of time.

5. Explode Shape Layer

Take control of your shape layers! Explode & merge for greater precision.

6. Motion Version

Motion v2 includes 20 powerful new tools that put the power in your hands and a punch in your keyframes. The new UI is smaller and the code is even faster. The goal of Motion v2 was to create an animation wingman to help bring your projects to life.

7. Duik

The comprehensive rigging and animation tool set for After Effects, Duik is not just a script anymore, but it really deserves its name of “tool set” for After Effects. The complete list of features is huge, and it’s more like a lot of different scripts packaged together to bring animation in After Effects to a whole new level.

8. Springy FX

A cool toolset that allows you to easily create some fun secondary motion, based on your keyframed transform properties ! Whether you want a stylish cartoon look or to add some subtle overlapping actions on your animations, you’ll certainly find the tool you need among the 9 tools available in the set.

9. Joysticks

Pose-based rigging system for After Effects with limitless applications.

10. True Comp Duplicator

Creates a complete duplicate of a comp hierarchy including sub-comps. If a comp is used multiple times, the comp only gets duplicated once and all remaining references point to the first duplicate. If the comps are arranged in a special folder hierarchy in the project panel, that folder hierarchy is preserved or duplicated (depending on user preference) for the duplicated comps.