Can cubic-bezier create a bounce animation?

Yes. Setting Y1 or Y2 greater than 1.0 creates an elastic overshoot where an element travels past its target destination before snapping back.

Why do X coordinates have to stay between 0 and 1?

The X-axis represents normalized animation duration from start (0%) to completion (100%). Time cannot travel backward, so X values must be strictly bounded between 0 and 1.

Design & CSS

CSS Cubic-Bezier Easing Visualizer

The problem: Standard CSS easing keywords like 'ease' or 'linear' look robotic and lack the natural spring or momentum of modern UI interactions.

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100% In-Browser Execution. Zero server uploads. Your data never leaves this tab — disconnect your internet and the tool keeps working.

ASG Privacy VerifiedVerified

100% In-Browser Execution. Zero server uploads. Your data never leaves this tab — disconnect your internet and the tool keeps working.

Bezier Curve Graph (200×200)

cubic-bezier(0.34, 1.56, 0.64, 1)

Live Easing Motion Test

Watch how the box accelerates and decelerates according to the curve.

Box

Popular Presets:

Control Point Coordinates

X1: 0.34

Y1: 1.56

X2: 0.64

Y2: 1

CSS Transition Code

transition: transform 600ms cubic-bezier(0.34, 1.56, 0.64, 1);

CSS Cubic-Bezier Easing Visualizer: the complete guide

A CSS Cubic-Bezier Easing Visualizer and Animation Playground designs custom transition acceleration curves with live interactive motion testing. Default CSS transitions like 'linear' or 'ease' can feel robotic or sterile. Fine-tuning the four control coordinates of a cubic bezier curve allows developers to create springy button bounces, dramatic anticipatory wind-ups, and natural deceleration curves. This tool includes an interactive SVG curve canvas and 1-click CSS transition code.

Deconstructing the Parametric Cubic Bezier Formula

A cubic bezier curve is defined by four points: P0 (0, 0), P1 (x1, y1), P2 (x2, y2), and P3 (1, 1). While X coordinates must remain between 0 and 1 to represent chronological time, Y coordinates represent motion distance and can exceed 1.0 (producing elastic overshoots or bounces) or drop below 0.0 (producing anticipatory back-up motions).

Designing Physics-Based UI Micro-Interactions

Bouncy transitions like `cubic-bezier(0.34, 1.56, 0.64, 1)` create delightful micro-interactions for modal dialog pop-ups, mobile drawer slide-outs, and toggle switches by simulating real-world mechanical momentum and spring inertia.

Step by step: how to use Cubic-Bezier Easing

1
Drag the control point coordinate sliders (X1, Y1, X2, Y2) or choose a preset.
2
Review the rendered SVG curve graph in the 200×200 viewport.
3
Click 'Play Animation' to watch the live test box travel along the timeline.
4
Inspect the generated `transition: transform ... cubic-bezier(...)` CSS rule.
5
Click 'Copy CSS' to paste the easing declaration directly into your CSS or Tailwind stylesheet.

Security & privacy

Calculations run entirely in-browser. All parametric bezier curves and SVG paths are computed locally with zero server analytics.