--- title: Building an Infinite GSAP Scroll Gallery with Parallax... description: A detailed walkthrough of building an infinite scrolling image gallery using GSAP, covering three core modules: a scroll-driven slider with per-item parallax... canonical: https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Building an Infinite GSAP Scroll Gallery with Parallax and Flip Transitions | daily.dev og:description: A detailed walkthrough of building an infinite scrolling image gallery using GSAP, covering three core modules: a scroll-driven slider with per-item parallax... og:url: https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r og:image: https://api.daily.dev/og/posts/VWc4oLh9r.png og:image:alt: Building an Infinite GSAP Scroll Gallery with Parallax and Flip Transitions og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Building an Infinite GSAP Scroll Gallery with Parallax and Flip Transitions **[Codrops](https://daily.dev/sources/codrops)** · 27 min read · 1 upvotes · 0 comments ## Summary A detailed walkthrough of building an infinite scrolling image gallery using GSAP, covering three core modules: a scroll-driven slider with per-item parallax using a paused timeline as a virtual scroll position, a viewport-aware reveal system that fades images and captions in using SplitText, and a Flip-powered morph transition that expands thumbnails into a fullscreen detail view. The tutorial explains the math behind seamless looping, parallax offset anchoring at wrap points, scrub proxy easing, state machine guards for the transition, and accessibility considerations. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How do I build an infinite scrolling gallery in GSAP without using native browser scroll? Use a paused GSAP timeline built with a vertical adaptation of GSAP's seamlessLoop helper, where every slide gets two tweens (exit past the top, re-enter from the bottom), and treat the timeline's playhead as the scroll position via gsap.utils.wrap to fold out-of-range values back into a valid loop time, driven by an eased proxy object rather than direct scroll values. _Developers wiring custom scroll engines can compare this GSAP timeline-as-scrollbar approach on daily.dev._ ### How does GSAP Flip animate an element that morphs into a completely different DOM element, like a thumbnail into a full-screen preview? Flip matches elements by a shared data-flip-id: assign the same flip id to the thumbnail wrapper and the target preview figure, call Flip.getState() on the thumbnail before mutating the DOM, then use Flip.from(state, {targets: preview}) so Flip animates the second element from the first element's recorded bounds. Only one element can hold the id at a time or Flip cannot resolve which one to match. _Anyone debugging a silent Flip no-op can check this ordering and shared-id pattern on daily.dev._ ### Why does GSAP Flip.from silently do nothing when animating between two elements? The most common cause is setting a shared data-flip-id after calling Flip.getState() instead of before; Flip auto-generates an id for elements missing one at capture time, so a snapshot taken too early records a generated id that matches nothing, causing Flip.from to find no partner and produce a silent no-op with no error thrown. _Developers chasing this exact silent Flip failure can find the fix ordering on daily.dev._ ## Similar posts on daily.dev - [The Never Ending Story: Building a Seamless Infinite Scroll Experience with GSAP & Lenis](https://daily.dev/posts/the-never-ending-story-building-a-seamless-infinite-scroll-experience-with-gsap-lenis-ccdgso8sn) · Codrops · 0 upvotes · 0 comments - [SVG Mask Transitions on Scroll with GSAP and ScrollTrigger](https://daily.dev/posts/svg-mask-transitions-on-scroll-with-gsap-and-scrolltrigger-9gvmg0nez) · Codrops · 18 upvotes · 0 comments - [GSAP: ScrollSmoother](https://daily.dev/posts/gsap-scrollsmoother-dgkut5wtc) · Larablog · 1 upvotes · 0 comments - [Scroll-driven CSS animations](https://daily.dev/posts/scroll-driven-css-animations-uw6plcluy) · Flavio Copes · 142 upvotes · 6 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#web-animation](https://daily.dev/tags/web-animation) [View this post on daily.dev](https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Building an Infinite GSAP Scroll Gallery with Parallax and Flip Transitions","url":"https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r"},"datePublished":"2026-07-30T14:19:00.097Z","dateModified":"2026-09-14T07:03:26.794Z","description":"A detailed walkthrough of building an infinite scrolling image gallery using GSAP, covering three core modules: a scroll-driven slider with per-item parallax...","image":"https://media.daily.dev/image/upload/s--P4t4XyoV--/f_auto/v1722860399/public/Placeholder%2001","thumbnailUrl":"https://media.daily.dev/image/upload/s--P4t4XyoV--/f_auto/v1722860399/public/Placeholder%2001","isAccessibleForFree":true,"articleSection":"Codrops","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Codrops","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/codrops","url":"https://daily.dev/sources/codrops"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"javascript,web-animation","timeRequired":"PT27M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Codrops","item":"https://daily.dev/sources/codrops"},{"@type":"ListItem","position":3,"name":"Building an Infinite GSAP Scroll Gallery with Parallax and Flip Transitions"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/building-an-infinite-gsap-scroll-gallery-with-parallax-and-flip-transitions-vwc4olh9r#faq","mainEntity":[{"@type":"Question","name":"How do I build an infinite scrolling gallery in GSAP without using native browser scroll?","acceptedAnswer":{"@type":"Answer","text":"Use a paused GSAP timeline built with a vertical adaptation of GSAP's seamlessLoop helper, where every slide gets two tweens (exit past the top, re-enter from the bottom), and treat the timeline's playhead as the scroll position via gsap.utils.wrap to fold out-of-range values back into a valid loop time, driven by an eased proxy object rather than direct scroll values. 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