How to Build CSS Animations

Create CSS keyframe animations visually. Adjust timing, easing, and properties with a live preview. Free CSS animation generator with code export.

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Step-by-Step Guide

1

Choose an animation type

Select from preset animation types — fade, slide, bounce, rotate, scale, shake, or start from scratch. Each preset gives you a working starting point that you can customize further.

2

Configure keyframes

Add, remove, and edit keyframes on a visual timeline. Set CSS properties at each keyframe point — transform, opacity, color, size, position, and more. Drag keyframes to adjust their timing.

3

Adjust timing and easing

Set animation duration, delay, iteration count, and direction. Choose from built-in easing curves (ease-in, ease-out, cubic-bezier) or create a custom curve for precise motion control.

4

Copy the CSS code

Click "Copy CSS" to grab the complete @keyframes rule and animation property. The output includes vendor prefixes if needed. Paste directly into your stylesheet — ready for production.

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Frequently Asked Questions

What browsers support CSS animations?
CSS animations are supported in all modern browsers — Chrome, Firefox, Safari, Edge, and mobile browsers. They have had broad support since 2013, so compatibility is not a concern for most projects.
Are CSS animations bad for performance?
Animations using transform and opacity are GPU-accelerated and very performant. Avoid animating layout properties like width, height, top, or left — these trigger expensive reflows. Stick to transform and opacity for smooth 60fps animations.
What is the difference between animation and transition?
CSS transitions animate between two states (e.g., hover on/off). CSS animations use @keyframes to define multi-step sequences that can loop, reverse, and run independently. Use transitions for simple state changes, animations for complex motion.
Related Reference

CSS Animation Cheat Sheet

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