CSS Animation Curve Editor – Visualize and Customize Easing, Transitions & Timing Functions

Design and preview CSS timing curves visually with instant easing feedback and After Effects export.

TIME
PROGRESSION
Recalculating...
 s

Presets

Click on a preset to view it, or drag the handles to create a custom curve.

Custom
Ease
Linear
Ease-in
Ease-out
Ease-in-out
Material standard
Material decelerate
Accelerate

What Is a CSS Cubic Bezier Curve? Learn Timing Functions for Animations

A cubic-bezier curve is a powerful CSS timing function used to create smooth, customized transitions and animations in web design. It controls the pacing of animations, allowing developers to adjust acceleration, deceleration, and even bouncing effects.

The cubic-bezier() function accepts four numeric values: x1, y1, x2, y2. These define control points for a Bézier curve that maps time progression (x-axis) to animation progress (y-axis), from start (0, 0) to end (1, 1).

This live CSS bezier curve editor lets you visually adjust easing curves and immediately preview how different configurations affect animation timing. You can drag control points, try common presets, and copy CSS timing functions for use in your own code.

CSS Cubic Bezier Examples – Popular Easing Curve Presets

⏳ Ease-In (Slow Start)

Starts slowly and speeds up as it progresses. Great for entrances and building anticipation.

cubic-bezier(0.42, 0, 1, 1)

🏁 Ease-Out (Smooth End)

Starts fast and slows down toward the end. Ideal for exits and natural-feeling finishes.

cubic-bezier(0, 0, 0.58, 1)

🪀 Bounce / Elastic Motion

Creates an overshoot and rebound effect, mimicking spring-like behavior.

cubic-bezier(0.68, -0.55, 0.27, 1.55)

How Cubic Bezier Control Points Affect CSS Animation Timing

Best Practices for CSS Animation Easing and Timing Curves

Try the CSS Easing Curve Editor – Live Preview and Copy-Ready Code

Use this CSS easing function editor to test and tweak cubic-bezier() values visually. Animate objects in real time and copy ready-to-use CSS for websites or web apps.

Export CSS Cubic Bezier Easing Curves to After Effects Expressions

Want to use these curves in motion design or video? Instantly generate After Effects (AE) expressions that replicate your custom cubic-bezier easing.

Available export formats:

All exports match the bezier curve shown in the editor and work natively in After Effects without plugins.

Benefits of Reusing CSS Timing Curves in Motion Design and AE

Try any preset or drag the handles above, open the copy dropdown, and paste the exported easing curve anywhere you need — whether it's CSS code or AE expressions.

What Are Easing Curves in CSS?

Easing curves control the acceleration and deceleration of CSS animations. Instead of moving at a constant speed, elements can speed up, slow down, bounce, or ease smoothly based on the curve's shape.

In CSS, easing is defined using functions like ease, ease-in, ease-out, or the more advanced cubic-bezier(). These curves influence how your animation feels — whether it's snappy, gentle, dramatic, or natural.

This editor helps you visualize easing curves in real time, so you can choose the right animation behavior for your buttons, modals, sliders, or any interactive UI element.

Not sure where to start? Try a preset or just drag the curve — no need to know the math.

FAQs About CSS Animation Timing Functions

How can I slow down a CSS animation?

Use this editor to adjust the easing curve visually, so your animation starts slower or ends gradually using cubic-bezier functions.

What is a CSS timing function?

It defines the speed curve of an animation. This tool lets you design and preview them without writing code.

Do I need to know what cubic-bezier means?

No! Just drag the handles and copy the result. This tool helps you design animation timing visually.