What It Does
Expression Kit is a panel extension for After Effects that gives you a library of 140 pre-built expressions organized across 7 categories. You browse, preview, adjust parameters, and apply expressions directly to your layers without writing a single line of code. Each expression opens a live preview window so you can see exactly what it does before committing.
Key Features
Live Preview. Click any expression to open a preview window with fast and slow playback options. Adjust the expression’s parameters in real time and watch the result update instantly before applying it.
Expression Library. 140 expressions span seven categories including Text Animator (23 character-based animations), Text Expressions for dynamic typography, Physics (gravity, bounce, elastic), and Motion (position, velocity, directional). You can filter by property type or difficulty level, and track favorites and recently used expressions.
Stagger Tool. Automatically adds frame-based delay across selected layers, building sequential animations with a single click. The delay amount is adjustable.
Freeze Tool. Locks any applied expression at a specific frame, stopping the animation exactly where you want it without manually baking keyframes.
Expression Manager. Scans all expressions across your project and displays their status as valid, error, or disabled. From here you can enable or disable expressions in bulk, or paste an expression across all layers or a filtered selection at once.
Layer Filtering. When bulk-applying expressions, you can filter target layers by type: text, null, or shape. Useful for applying a stagger to only your text layers, for example.
In-Panel Code Editor. Edit and save expression code directly inside the panel if you want to customize an expression or fix something without opening the expression editor elsewhere.
Who It’s For
Motion designers who want to add expression-driven animation to titles, lower thirds, or UI elements without memorizing code. It’s also useful for designers who know expressions but want a faster way to audition and apply common patterns across a large project. The physics and motion categories cover looping backgrounds, bouncing elements, and follow-through behavior that would otherwise require building expressions from scratch.
Pricing
Expression Kit is a one-time purchase at $39.00, with a discounted price currently available. A free trial is offered through aescripts.com. Compatible with After Effects 2022 and above on Windows and macOS.