Build CSS keyframe animations with presets and live preview. Customize duration, timing, iterations, and more.
Last updated: September 2026@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.animated-element {
animation: fadeIn 1s ease 0s 1 normal forwards;
}CSS Animation Generator is a free browser-based tool that lets you create CSS keyframe animations visually with a timeline editor and export production-ready CSS code. It processes everything locally in your browser using JavaScript, so your data never leaves your device. No sign-up, no installation, and no server uploads required — just open the tool and start using it immediately.
This tool is particularly useful when adding animations to websites without writing complex keyframe code manually. Since it runs entirely in your browser, it works offline after the page loads and keeps your data completely private. Whether you are a developer, designer, student, or professional, this web development tool saves time and eliminates the need for desktop software installation.
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