Animation / Easing Visualizer
100% LocalInteractive Cubic Bezier editor for CSS transitions.
Physics Simulation
Quick Presets
CSS 2.1 - CSS 4
Full support for modern interpolation specs including spring-like overflows.
Smooth 60FPS
Hardware-accelerated CSS transitions for maximum visual fluidity.
Timing Syntax
Transition Export
transition-timing-function: cubic-bezier(0.25, 0.10, 0.25, 1.00);
Sass / CSS Variables
$ease-custom: cubic-bezier(0.25, 0.10, 0.25, 1.00); --ease-prop: cubic-bezier(0.25, 0.10, 0.25, 1.00);
Bezier Logic
Y-values outside the [0, 1] range create "elastic" or "overshoot" effects common in premium iOS/macOS UI interactions.
Drag the control points on the bezier curve. The CSS cubic-bezier() value updates and the animation previews.
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What is Animation / Easing Visualizer?
Frequently Asked Questions
Technical Deep Dive
Animation / Easing Visualizer
Fine-tune your web animations with an interactive easing visualizer. Edit cubic-bezier curves, preview movements in real-time, and copy production-ready transition strings.
Pixel-Precise Output
Generates CSS, tokens, or assets that match what your design system expects.
Live Visual Preview
See changes the moment you make them, no copy-paste cycle between tool and IDE.
Copy-Paste Ready
Output is formatted for direct use in stylesheets, Tailwind configs, or Figma tokens.
01 Timing Function Topology
| Class | Bezier Coordinates | Velocity Profile | Use Case |
|---|---|---|---|
| Ease Out | (0, 0, 0.58, 1) | Fast Start, Slow End | UI Elements Entering |
| Ease In | (0.42, 0, 1, 1) | Slow Start, Fast End | UI Elements Exiting |
| Linear | (0, 0, 1, 1) | Constant Speed | Spinners / Loaders |
| Overshoot | y2 > 1 or y1 < 0 | Bypasses Target | Spring/Bounce Effects |
02 Motion Serialization Pipeline
cubic-bezier() function payload.
03 Choosing the Right Easing Function
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Cubic Bezier Fundamentals CSS cubic-bezier(x1, y1, x2, y2) defines a curve that maps animation progress (0→1) to output value (0→1). The four parameters are the x,y coordinates of two control points. Values outside 0-1 for y coordinates create overshoot effects (bouncing past the target). This tool visualizes the curve in real-time as you adjust parameters.
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UX Guidelines for Motion Material Design and Apple HIG recommend: ease-out (cubic-bezier(0, 0, 0.2, 1)) for elements entering the screen, ease-in (cubic-bezier(0.4, 0, 1, 1)) for elements leaving, and ease-in-out for elements moving between positions. Duration should be 200-300ms for micro-interactions and 300-500ms for page transitions. Anything over 500ms feels sluggish.