CSS Fade In / Fade Out Animation Generator
Create smooth CSS fade-in and fade-out animations with a visual editor. Adjust duration, delay, easing, and direction — then copy production-ready keyframe CSS. Everything runs client-side in your browser.
CSS Animation Generator
Build CSS keyframe animations visually. Configure timing, add keyframes, preview live, then copy production-ready CSS.
Animation Properties
Keyframes (2)
CSS Output
@keyframes myAnimation {
0% {
opacity: 0;
}
100% {
transform: none;
}
}
.animated-element {
animation: myAnimation 0.6s ease 0s 1 normal both;
}Presets
About CSS Animations
CSS animations allow elements to transition between styles over time using @keyframes rules and the animation shorthand property.
@keyframes define the animation steps. Each keyframe specifies CSS properties at a given percentage (0% = start, 100% = end).
Duration controls how long one cycle takes. Delay sets time before the animation starts.
Timing function controls acceleration: ease starts slow, speeds up, then slows; linear is constant speed.
Fill mode determines styles before/after animation: forwards keeps the final state, both applies in both directions.
Direction: alternate reverses every other cycle, creating smooth back-and-forth effects. Use with infinite iteration count for looping animations.
Performance tip: animate transform and opacity for best performance — they run on the GPU compositor and don't trigger layout recalculations.
What is a CSS fade animation?
A CSS fade animation gradually changes an element's opacity from 0 (fully transparent) to 1 (fully visible), or vice versa. It uses the @keyframes rule to interpolate the opacity property over a specified duration. Fade animations are one of the most common UI transitions because they feel natural and draw attention without being jarring.
Common use cases
Fade animations are used for page-load entrance effects, modal and tooltip reveals, image gallery transitions, and notification banners that appear then auto-dismiss. They also improve perceived performance by gracefully revealing content that loads asynchronously, such as lazy-loaded images or API-driven data.
Frequently Asked Questions
How do I make an element fade in on page load with CSS?
Apply an animation with opacity going from 0 to 1 using @keyframes, and set animation-fill-mode to forwards so the element stays visible after the animation completes. You can also add animation-delay to stagger multiple elements.
Can I combine fade with other CSS animations?
Yes. You can chain multiple animations in the animation shorthand property separated by commas, for example combining a fade-in with a slide-up for a polished entrance effect.
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