Resources / CSS Animations
Animate.css is the classic starting point, Animista lets you build custom keyframes on demand, and Motion brings the power of the Web Animations API with minimal footprint.
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All Tools
Animate.css
Cross-browser library of over 80 ready made keyframe animations triggered by CSS classes and tuned through CSS custom properties for duration and delay.
Hippocratic License 2.1, an ethical-source license, not plain MIT. Current version 4.1.1.
Bounce.js
JS library and visual generator for CSS3 keyframe animations built from scale, rotate, translate and skew steps, last active around 2015.
Official bouncejs.com domain is now a parked for-sale page; source and docs remain on GitHub, repo not archived.
Anime.js
JavaScript animation engine covering CSS properties, SVG shape morphing, DOM attributes and plain JS objects, with a modular core around 24.5kB.
Free and open source, actively developed with a v4 rewrite; no framework required.
Magic Animations
CSS3 library of around 70 named effects grouped as Magic, Bling, Perspective and Space animations, applied by adding one class to an element.
MIT licensed, about 3.1kB gzipped, installable via npm, Yarn or GitHub Package Registry.
Zdog
Pseudo-3D engine that draws flat shapes positioned in 3D space with canvas or SVG, letting designers build simple rotatable 3D models declaratively.
About 2100 lines of code, 28kB minified; install via npm, Bower, CDN or direct download.
CSShake
Sass built CSS library of shake effects, basic, slow, hard, horizontal, vertical, rotation and opacity, applied through ready made class names.
Available via npm, Bower, GitHub or cdnjs; no license stated on the project site.
Hover.css
Collection of over 100 CSS3 hover effects for links, buttons, icons and images, grouped into 2D, background, border, shadow and speech bubble sets.
Free for personal or open source use; commercial use needs a paid license starting at 14 dollars, up to 18 for extended.
AniJS
Declarative animation library that triggers CSS3 animations from HTML data attributes instead of JavaScript, using a sentence like event syntax.
About 9kB minified, no dependencies; main development activity dates back several years.
Animista
Browser based playground for previewing and tuning CSS keyframe animations, then copying or downloading the generated CSS code for your project.
Animations are released under the FreeBSD license, free for personal and commercial use.
Tachyons-animate
Utility classes controlling CSS animation play state, iteration count and direction, meant to pair with the Tachyons atomic CSS framework.
ISC licensed, installable via npm; repository history is short and activity has been minimal.
Infinite
Small CSS file providing four looping effects, pulsate, opacity pulse, alert pulse and rotate, meant for loading indicators and muted text states.
MIT licensed, still at an early v0.1 release; a single infinite.css file, no build step.
OBNOXIOUS.CSS
Deliberately over the top CSS effects, including shake, strobe and twister, built by Tim Holman as a joke library rather than a production tool.
Source and usage examples are on GitHub; a novelty, not built with accessibility in mind.
MOTION UI
Sass library from Zurb Foundation offering prebuilt slide, fade, spin, scale and hinge transitions plus mixins for writing custom CSS animations.
MIT licensed, open source on GitHub; transitions are not supported in Internet Explorer 9.
Thoughtbot
Thoughtbot blog tutorial explaining CSS transitions and transform functions, scale, rotate, translate and skew, with interactive CodePen examples.
Educational article, not a library; covers prefers-reduced-motion and the will-change property.
SVG Artista
Browser tool that animates SVG stroke and fill properties from pasted markup, with controls for duration, easing and stagger, then outputs CSS.
Free to use; generated code is released under the MIT license.
AnimXYZ
CSS animation toolkit that composes effects from readable utility attributes like xyz fade small up, with dedicated Vue and React integrations.
Base build is 3.11kB, 12kB with utilities included; disables itself when prefers-reduced-motion is set.
Whirl
Collection of CSS and Sass loading animations built with pseudo-elements, distributed as individual files so a project only imports what it uses.
MIT licensed, published as @jh3y/whirl on npm; demo hosted at whirl.netlify.app.
Hamburgers
Set of 31 CSS3 animated hamburger menu icon styles, including slider, squeeze, spin and elastic variants, each with a reverse direction option.
Built with CSS3 3D transforms; not supported in Internet Explorer 9 and older.
CSS Loaders & Spinners
GitHub hosted gallery of ready made CSS loading spinners and loaders, each example paired with copyable source code for direct reuse.
Small project, around 44 GitHub stars and 19 commits total; a static reference rather than an active library.
Motion
Animation library built on the Web Animations API, now developed under the name Motion after merging with Framer Motion, supporting React, JS and Vue.
Project renamed to Motion; MIT licensed, with APIs described as far smaller than GSAP equivalents.
Pocoloco
Generator for dynamic gradient backgrounds in the style of Stripe, producing a ready to use WebGL canvas effect for a website.
Open source on GitHub as greentfrapp/pocoloco; built on the bundled minigl.js renderer.
AniX
Lightweight JavaScript animation library under 3kB gzipped that drives native CSS transitions, with support for jQuery, React and Vue.
GitHub account renamed from drawcall to adajuly; the old drawcall.github.io demo link is dead.
Best CSS Animation Libraries & Tools for Web Developers
CSS animations bring interfaces to life with smooth transitions, entrance effects, hover states, and scroll-triggered animations. The right animation library can make a website feel polished and modern without the performance overhead of JavaScript-heavy solutions.
For quick wins, Animate.css and Animista cover most needs: Animate.css ships ready made classes under a Hippocratic license with ethical use clauses, while Animista lets you tune and export plain CSS instead of adding a dependency. For JavaScript driven animation, Anime.js and Motion (formerly Framer Motion and Motion One) scale from simple transitions to timelines and SVG morphing and stay actively maintained, unlike older entries such as Bounce.js or AniJS, which still work but saw no real updates in years.
Narrower needs are better served by focused libraries: Hover.css for buttons and Hamburgers for menu icons. Watch licensing: Hover.css charges for commercial use, and Animate.css is not plain MIT. The bigger risk here is abandonment, several entries are static demo pages from 2014 to 2017, so check the GitHub history before depending on anything beyond pure CSS.
What to check before you pick one
- Performance: Good animations use GPU-accelerated properties (transform, opacity) rather than layout-triggering properties (width, height, top).
- Accessibility: Well-designed tools respect prefers-reduced-motion media queries for users who are sensitive to motion.
- Copy-paste ready: The best tools generate clean CSS code you can drop directly into your project.
Frequently Asked Questions
What is the best CSS animation library?
Animate.css is the most widely used CSS animation library, offering ready-to-use keyframe animations for entrances, exits, and attention-seekers. For scroll-triggered animations, AOS (Animate On Scroll) and Wow.js are popular choices. For advanced sequences, GSAP is industry-standard.
How do I create CSS keyframe animations?
CSS keyframe animations use @keyframes rules to define animation states, then the animation property to apply them to elements. Tools like Animista and Keyframes.app provide visual editors that generate the CSS code for you, which you can copy directly into your stylesheet.
How do I add scroll animations to a website?
AOS (Animate On Scroll) is the simplest scroll animation library: add data-aos attributes to HTML elements and initialize with one line of JavaScript. For more control, ScrollReveal and Intersection Observer API (native browser API) are excellent alternatives.