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CSS animation generator

Build CSS keyframe animations visually with live preview. Choose from 12 presets, customize timing, duration, delay, and direction. Copy production-ready CSS instantly.

Preview
css
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animated-element {
  animation: fadeIn 1s ease 0s 1 normal none;
}

What is CSS Animation Generator?

A CSS animation generator is a visual tool that helps you create keyframe animations without writing code from scratch. CSS animations control how elements move, fade, scale, rotate, and transform on web pages. While the @keyframes syntax is well-documented, getting the right combination of duration, easing, delay, iteration count, direction, and fill mode requires trial and error. This tool provides 12 battle-tested animation presets covering the most common motion patterns: fades, slides, bounces, spins, pulses, shakes, flips, and zooms. Each preset generates standards-compliant @keyframes CSS that works in all modern browsers. You adjust timing parameters with sliders and dropdowns while watching the animation play in real-time on a preview element. Once the motion feels right, copy the complete CSS including both the @keyframes block and the shorthand animation property. All processing runs in your browser with zero server dependency.

How to Use CSS Animation Generator

  1. 1

    Choose an animation preset

    Select from 12 presets: Fade In, Fade Out, Slide In Left/Right/Up/Down, Bounce, Spin, Pulse, Shake, Flip, or Zoom In. Each generates the correct @keyframes block automatically.

  2. 2

    Adjust timing controls

    Set duration (0.1-5s), delay (0-3s), timing function (ease, linear, ease-in, ease-out, ease-in-out, cubic-bezier), iteration count (1/2/3/infinite), direction, and fill mode to fine-tune the animation feel.

  3. 3

    Preview and copy

    Click Play to see the animation on the preview element. Adjust until it looks right, then click Copy CSS to get the complete @keyframes block and animation property ready for your stylesheet.

Features

  • 12 animation presets covering fades, slides, bounce, spin, pulse, shake, flip, and zoom
  • Duration slider from 0.1 to 5 seconds with 0.1s precision
  • Full easing control including cubic-bezier for spring-like effects
  • Configurable delay, iteration count, direction, and fill mode
  • Live animated preview that plays in real-time as you adjust settings
  • Copy production-ready CSS with @keyframes block and animation shorthand

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Frequently Asked Questions

Do these animations work in all browsers?+
Yes. CSS @keyframes animations are supported in all modern browsers including Chrome, Firefox, Safari, Edge, and mobile browsers. No vendor prefixes are needed for current browser versions.
What is fill-mode and when should I use it?+
Fill mode controls what styles apply before and after the animation runs. Use "forwards" to keep the final state after animation ends, "backwards" to apply the first keyframe during delay, or "both" for both behaviors. "none" reverts to the original style.
Can I combine multiple animations on one element?+
Yes. CSS allows comma-separated animation values. Copy the @keyframes blocks from different presets and combine the animation properties: animation: fadeIn 1s ease, slideInUp 1s ease.
What is the cubic-bezier timing function?+
Cubic-bezier defines a custom acceleration curve using four control points. The preset cubic-bezier(0.68, -0.55, 0.27, 1.55) creates a spring-like overshoot effect. You can experiment with different values for unique motion feels.
How do I trigger the animation on scroll?+
Add the animation class when the element enters the viewport using Intersection Observer API or a library like AOS. Set fill-mode to "both" and the animation will play once the class is applied.
Is there a performance difference between animations?+
Animations using transform and opacity are GPU-accelerated and perform best. All 12 presets in this tool use these properties. Avoid animating width, height, margin, or padding as they trigger layout recalculation.