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Scroll Animation for Unbounce Landing Pages

Unbounce is built for conversion — and visual differentiation matters at the top of the funnel. Adding scroll-driven animation to your hero section makes paid-traffic visitors stop and engage. This guide shows you how with the Unbounce Custom HTML widget.

Manual Implementation
38 lines
// Manual scroll animation on Unbounce — 47+ lines before mobile
const canvas = document.getElementById('scroll-canvas');
const ctx = canvas.getContext('2d');
const frames = [];
let currentFrame = 0;

async function preloadFrames(count) {
  await Promise.all(Array.from({ length: count }, (_, i) => {
    const img = new Image();
    const padded = String(i).padStart(4, '0');
    img.src = `https://your-cdn.com/frames/frame-${padded}.jpg`;
    frames.push(img);
    return new Promise((r) => { img.onload = r; img.onerror = r; });
  }));
}

function drawFrame(index) {
  if (!frames[index]) return;
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  ctx.drawImage(frames[index], 0, 0, canvas.width, canvas.height);
}

window.addEventListener('scroll', () => {
  const rect = canvas.parentElement.getBoundingClientRect();
  const scrolled = -rect.top;
  const total = rect.height - window.innerHeight;
  const progress = Math.max(0, Math.min(1, scrolled / total));
  const frameIndex = Math.floor(progress * (frames.length - 1));
  if (frameIndex !== currentFrame) {
    currentFrame = frameIndex;
    requestAnimationFrame(() => drawFrame(currentFrame));
  }
}, { passive: true });

// Still needed: resize handler, mobile touch events,
// Safari canvas fix, Unbounce Script Manager injection,
// CDN setup for 120+ JPEG files, lazy loading...
preloadFrames(120).then(() => drawFrame(0));

Why Scroll Animation Boosts Landing Page Conversion

Landing pages have one job: convert. Visitors land cold and decide in seconds whether to engage. A static hero asks them to read; a scroll-driven animation makes them watch. The difference shows up in scroll depth and time-on-page metrics, both of which correlate with conversion.

  • ● Use scroll animation on the hero section for instant differentiation
  • ● A/B test scroll animation vs. static hero on your top-traffic page
  • ● Use it on long-form sales pages to keep visitors engaged through the pitch

Adding Scroll Animation to Unbounce

Drag a Custom HTML widget onto your Unbounce page, paste the ScrollerSites snippet, and resize the widget to fit your hero section. The animation plays as visitors scroll — no Unbounce script manager edits needed.

  • ● Use the Custom HTML widget for any landing page
  • ● Place it in the hero section for maximum first-impression impact
  • ● Combine with Unbounce sticky bars and popups for layered conversion paths

Ready to Add Scroll Animation?

Differentiate your Unbounce landing pages with cinematic scroll animation — no script manager edits required.

Get Started Free →

Related Platform Guides

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Landing Page Builders

Scroll Animation for ClickFunnels

Add scroll-driven animation to ClickFunnels pages using the HTML element. Differentiate your funnels with Apple-style scroll experiences.

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Scroll Animation for Instapage

Add scroll-driven animation to Instapage landing pages with the HTML widget.

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Scroll Animation for Leadpages

Add scroll-driven animation to Leadpages with the HTML widget.

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