🎬 CSS Animation Builder

What Can the CSS Animation Builder Do?

CSS Animation Builder is a free online design tool with 12 common CSS animation presets (bounce, fade, slide, rotate, zoom, shake, pulse, etc.). It supports adjusting duration, delay, iteration count, easing function, and other parameters with real-time preview. One-click copy of @keyframes and animation CSS code. Ideal for web animation design, UI interaction development, and learning CSS animations. Everything runs locally: Duration and Delay are processed on your device, never sent to a server.

Core Features

• 12 Presets: bounce/fade-in/fade-out/slide/rotate/zoom/shake/pulse
• Adjustable Params: duration, delay, iteration, easing, direction
• Live Preview: see effects instantly as you adjust
• Complete Code: @keyframes + animation properties
• One-Click Copy: paste directly into your project

How to Use

1. Click to select an animation type.

2. Adjust parameters (duration, easing, etc.).

3. Click "Play" to preview the animation.

4. Click "Copy CSS" to get the code and paste into your project.

Use Cases

Case 1: Web Animations

Add entrance animations to buttons, cards, and modals for better UX.

Case 2: UI Interactions

Add feedback animations for loading states, notifications, and form validation.

Case 3: Learning CSS Animations

Visually understand @keyframes and animation properties to quickly master CSS animations.

Extended Knowledge

CSS animations use @keyframes to define keyframes and the animation property to control playback. Easing functions determine speed curves: ease is slow-fast-slow, linear is constant speed, ease-in starts slow, ease-out ends slow. cubic-bezier allows custom curves. animation-fill-mode controls styles before/after: forwards keeps the end state, backwards applies the start state. The will-change property hints the browser to optimize rendering performance.