Float
SUBTLEGentle vertical motion for illustrations, hero graphics and decorative interface elements.
Explore, customize and copy beautiful CSS animations. Live previews, no signup, no uploads and no extra animation libraries.
Thousands of ready-to-use combinations built from carefully designed animation recipes. Find a motion, tune it and export production-ready CSS.
Animation studio
Adjust settings and copy clean CSS or a ready-to-run HTML example.
Animations use CSS keyframes and run locally in your browser. For production, consider honoring reduced-motion preferences and limiting infinite animations.
Discover, preview, customize and copy CSS animations without building every keyframe from scratch. UtilityGlen's free CSS Animation Library turns everyday elements into expressive interactions — from subtle button effects to dramatic reveals, loading animations and creative glitches.
Whether you're a frontend developer, UI designer, student or curious creator, you can explore animation styles visually and turn your favorites into reusable CSS code.
Generated animation variations
Base animation recipes
Edit timing, easing and more
Use the generated code in your project
Library counts describe combinations of core animation recipes, directions and strength settings, rather than thousands of individually hand-authored effects.
CSS animations can guide attention, explain changes, add feedback or simply make an interface more enjoyable. Here are four visual examples of the possibilities.
Gentle vertical motion for illustrations, hero graphics and decorative interface elements.
Digital distortion, sharp offsets and colorful signal separation for expressive headings.
Repeating rotational motion commonly used for loaders, progress indicators and creative shapes.
Repeating bar movements suited to audio interfaces, visualizers and playful loading states.
Instead of manually experimenting with every transform, timing function and keyframe, start with a ready-made animation and refine it visually.
Search the collection and explore animation categories to discover movement styles that suit your design.
Use the individual Play button on an animation card to see its motion in action before opening the editor.
Experiment with duration, delay, easing and repetition to change the rhythm and personality of your effect.
Generate animation CSS for your own website, application or component, without typing each keyframe manually.
Mark animations you like so it's easier to return to promising effects while exploring the library.
Use the editor's Play or Replay control to review your adjustments, then return to the animation library with a single click.
No animation expertise required. Follow this simple workflow to discover, edit and export an effect.
Search by name or browse animation categories until something catches your attention.
Press Play on the animation card. Open Edit when you're ready to personalize it.
Adjust the animation's speed, timing curve, repetitions and available appearance controls.
Copy the generated CSS and apply it to the matching element in your website or project.
Quick tip: Try a short animation duration for buttons or interface feedback, and a slower, gentler duration for decorative hero elements. Good animation should support the content rather than distract from it.
A CSS animation changes an element's style over time. Instead of instantly switching from one appearance to another, it can move, fade, rotate, scale or change color along a defined sequence.
Most CSS animations have two essential parts: @keyframes, which describe the motion, and the animation property, which controls how the sequence plays.
@keyframes floatUp {
0%, 100% {
transform: translateY(0);
}
50% {
transform: translateY(-12px);
}
}
.floating-element {
animation: floatUp
3s
ease-in-out
infinite;
}
This is an educational example. The tool's code exporter generates CSS for the animation you actually select.
Understanding these CSS properties helps you customize any animation with confidence.
How long one animation cycle takes, such as 500ms or 2s.
How motion accelerates and slows down, using easing such as ease-in-out, linear or steps().
How long the browser waits before starting the effect.
Whether an animation plays once, multiple times or indefinitely.
Whether cycles play normally, in reverse or alternate direction.
Determines which keyframe styles can apply before or after the animation runs.
There is no single best CSS animation for every interface. The best choice depends on what you want to communicate.
Fade-ins, slides, zoom-ins and reveals introduce content and help establish visual hierarchy.
Great for: cards, modals, headings and onboarding
Fade-outs, shrink effects and directional exits help elements leave the screen gracefully.
Great for: dismissals, alerts and closing panels
Bounce, shake, pulse and wobble bring emphasis to an important element or moment.
Great for: buttons, badges and feedback
Spins, pulses and looping indicators communicate that a process is underway.
Great for: asynchronous actions and progress states
Text reveals, flickers and expressive movement bring character to typography.
Great for: hero text and creative titles
RGB splitting, jitter, slicing and signal-like distortions create a futuristic visual character.
Great for: gaming, creative portfolios and digital art
Glitch animations imitate visual interference through abrupt movement, color separation and irregular timing. They're memorable when used deliberately — but quickly become overwhelming when applied everywhere.
RGB offsets add colorful separation.
Slice effects create broken visual bands.
Jitter adds abrupt digital movement.
Signal effects suggest electronic interference.
CSS animation can improve perceived responsiveness and help communicate interface changes. But adding too many effects, especially expensive layout animations, can also make a page harder to use.
Treat motion as a design tool, not decoration that every element must have. Use it thoughtfully, test it on real devices and respect visitors who prefer reduced motion.
Animating transform and opacity is often more efficient than changing layout properties.
Use prefers-reduced-motion to offer a less animated experience when requested.
Never make critical buttons impossible to activate because an animation is running.
Review effects on mobile screens, slower hardware and different modern browsers.
From practical interface feedback to expressive brand experiences, small motion details can make a big difference.
Add subtle emphasis to calls to action, hover states and successful interactions.
Use reveals and entrance effects to introduce sections, illustrations and feature highlights.
Communicate interactions such as adding items to a cart, applying filters or displaying notifications.
Indicate background work while preserving accessible status messaging for users.
Create memorable presentations for projects, creative identities and visual storytelling.
Experiment with bounces, glitches, energetic loops and dramatic transitions.
Both approaches have a place. A visual animation library is useful for discovery and experimentation; manual coding offers maximum control over complex or highly specific motion sequences.
| Task | UtilityGlen Library | Writing CSS Manually |
|---|---|---|
| Discover new styles | Visual presets and search | Research and experimentation |
| Preview movement | Built-in Play controls | Build your own preview |
| Adjust timing | Visual settings | Edit CSS properties directly |
| Reuse animations | Copy generated CSS | Maintain your own stylesheets |
| Fully custom sequences | Customize available recipes | Complete keyframe-level control |
You're in the right place. Here are answers to common questions about animation generators, CSS keyframes, performance, customization and using animated effects in real projects.
Start with one purposeful effect, refine its timing and test how it feels before adding more motion.
It is a free browser-based CSS animation explorer and customization tool. You can browse animation presets, preview their behavior, adjust available settings and copy generated CSS for use in your own projects.
Choose a preset, preview it using Play, open the editor and customize the timing and appearance. Then copy the generated CSS. You will still need to apply the CSS to the correct HTML element or selector in your project.
This version of the library includes 99 core animation recipes and 3,168 generated preset variations. The variations combine effects with directional and strength settings; they are not all individually hand-authored animations.
The generated CSS is designed to be copied into your own web projects. Test it alongside your existing styles and check any applicable site terms or third-party licensing requirements.
CSS transitions interpolate between property values when a change occurs, such as hovering over a button. CSS animations use keyframes to define sequences that can include multiple stages, repetition and independently controlled timing.
Yes. Adjust animation duration to make a movement faster or slower. For example, a 0.5-second cycle is shorter than a 2-second cycle. You can also modify easing to change the perceived motion.
Easing describes how an animation progresses over time. Linear motion runs at a consistent pace, while ease-in, ease-out and ease-in-out introduce acceleration or deceleration. The right curve can make movement feel smoother and more natural.
Set animation-iteration-count: infinite;.
Infinite repetition is useful for some loaders and
decorative effects, but continuous motion should be
used carefully for accessibility and comfort.
Modern mobile browsers support CSS keyframe animations. Performance can vary depending on the device, animation complexity and properties being animated. Always test important effects on mobile as well as desktop.
Check that your CSS selector matches the element, the keyframe name matches the animation name, duration is not zero, the stylesheet loads correctly and another rule is not overriding it. Also consider whether your device has reduced-motion settings enabled.
A glitch animation imitates digital interference. It may combine quick position changes, skewing, clipped slices, colored shadows or sudden timing jumps. Glitch effects are particularly popular in experimental graphic design and technology-themed interfaces.
They can. Animating layout-dependent properties, large shadows, filters or many elements at once may be expensive. Transform and opacity animations are often more efficient, though actual performance still depends on browser and device behavior.
It is a CSS media feature that lets websites respond to a visitor's reduced-motion preference. Developers can use it to minimize nonessential movement and offer a more comfortable experience.
Not necessarily. CSS keyframes can animate an element without JavaScript. JavaScript is useful when you need to trigger motion dynamically, coordinate application state or add advanced playback interactions.
Yes. Visual previews make animation concepts easier to understand, while the generated CSS provides examples you can study and adapt. Basic familiarity with HTML and CSS helps when integrating an effect into a website.
Explore thousands of CSS animation variations, experiment with timing and direction, and transform ideas into copy-ready code. Make your next website feel more alive — one thoughtful animation at a time.
Scroll back to the tool to explore the collection.
Handy web tools for daily use. Everything runs right in your browser—no sign-ups, no cloud uploads, and your data stays entirely on your device.