Transitions.dev

Transitions.dev is the free curated library of beautiful CSS transitions + animations for web developers + designers, founded as focused free resource alongside premium animation libraries + general inspiration sources. The pitch is direct: web animations + transitions can dramatically improve UX but writing custom CSS animations requires expertise + time. Transitions.dev provides copy-paste-ready CSS transition + animation snippets with live previews — enabling developers to add polished motion without animation expertise + designers to specify exact animations without writing CSS. For developers + designers building modern web apps wanting polished CSS animations, Transitions.dev is useful free resource. What makes Transitions.dev distinctive is the copy-paste-ready snippets + live preview + free pricing + focused scope. Most animation resources are tutorials (CSS-Tricks, YouTube) requiring you to write code yourself, or premium libraries (LottieFiles for Lottie, Animate.css for CSS classes) with feature complexity. Transitions.dev provides ready-to-use code snippets that work in any modern web stack (vanilla JS, React, Vue, Tailwind, plain HTML) — just copy code, paste into project, customize as needed. The focused scope (transitions + animations specifically) keeps it simple vs feature-creep alternatives. The core feature set: • **Curated CSS transition + animation snippets** — ready-to-use code • **Live previews** — see animations before copying • **Copy-paste code** — one-click copy to clipboard • **Categories** — organized by animation type (entrances, hovers, scroll, loaders, etc.) • **Search + filter** — find specific animations quickly • **Modern CSS techniques** — uses current CSS features (animation, transform, transition) • **Framework-agnostic** — works in vanilla HTML/CSS, React, Vue, Tailwind, any web stack • **No subscription required** — completely free access • **No login required** — friction-free browsing • **Customizable** — code is starting point for customization • **Recent additions** — fresh animations added periodically • **Community submissions** — developers + designers can submit animations • **Mobile-friendly** — preview + browse on mobile • **Performance-conscious** — animations use CSS transforms + opacity for GPU acceleration • **Accessibility-conscious** — respects prefers-reduced-motion where appropriate • **Tailwind CSS support** — Tailwind-compatible class versions for some animations For web developers + designers + agencies + indie makers the use cases: • **UI animation enhancement** — add polished transitions to web apps • **Hover effects** — interactive hover animations for buttons + cards • **Page transitions** — smooth navigation between pages • **Loading animations** — spinners + progress indicators • **Scroll-triggered animations** — animations on element visibility • **Form interactions** — animated form validations + submissions • **Marketing site polish** — hover + scroll animations for landing pages • **Educational + learning** — designers learning CSS animation techniques • **Quick prototyping** — animations for prototypes without animation expertise • **Agency client work** — polish enhancements for client web projects The pricing is completely free with no premium tier. Site monetizes through optional sponsorships + community contributions rather than subscription. Compared to premium animation libraries (LottieFiles for Lottie animations subscription, GreenSock for advanced JavaScript animations $49-$99/year), Transitions.dev's free + CSS-focused niche is uniquely accessible. Where Transitions.dev wins clearly: completely free CSS animations + transitions resource; copy-paste workflow eliminates need to write CSS animations from scratch; framework-agnostic code works in any web stack; live previews enable evaluation before committing; focused scope keeps it simple vs feature-heavy alternatives; for developers wanting quick polish without animation expertise, genuinely useful. Where it loses: limited to CSS animations + transitions (doesn't cover complex JavaScript animations like GSAP); smaller library than dedicated animation resources; for sophisticated motion design beyond CSS, GreenSock + Framer Motion + Lottie better fits; no design tool plugins (Figma users can't import directly); community-driven so library size + quality varies; for production-grade complex animations, hiring motion designer or using dedicated tools may produce better results. My take: for web developers + designers wanting quick CSS animation polish — Transitions.dev is genuinely useful and the copy-paste workflow saves real time vs writing animations from scratch. For sophisticated motion design (complex JavaScript animations, multi-step character animations, advanced timing), dedicated tools (GreenSock + GSAP, Framer Motion for React, Lottie animations from After Effects) more appropriate. For most modern web apps wanting polished hover effects + page transitions + loading animations, Transitions.dev covers needs at $0. Combine with Heroicons + Tabler Icons + free design resources for comprehensive free web design toolkit. Bookmark for CSS animation reference + use selectively for production needs.