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Learn Lottiefiles - 10 Code Examples & CST Typing Practice Test

LottieFiles is a platform and library ecosystem for rendering and sharing lightweight, high-quality animations on web, mobile, and desktop. It uses JSON-based Lottie animations exported from Adobe After Effects via Bodymovin, enabling scalable, interactive animations without heavy asset overhead.

View all 10 Lottiefiles code examples →

Simple LottieFiles Web Animation Lottie Hover Play Lottie Click Toggle Lottie Dark Mode Switch Lottie Scroll-Based Animation Lottie Speed Control Slider Lottie Segment Playback Lottie JSON Inline Embedding Lottie Button Icon Animation Lottie Background Animation

Learn LOTTIEFILES with Real Code Examples

Updated Nov 26, 2025

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Code Sample Descriptions

1

Simple LottieFiles Web Animation

# lottiefiles/demo/index.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <div id="animation" style="width:200px;height:200px;"></div>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('animation'),
        path: 'data/animation.json',
        renderer: 'svg',
        loop: true,
        autoplay: true
        });
    </script>
</body>
</html>

A basic LottieFiles web example that loads and plays a JSON animation in the browser.

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2

Lottie Hover Play

# lottiefiles/demo/hover.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <div id="hoverAnim" style="width:150px;height:150px;"></div>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('hoverAnim'),
        path: 'data/hover.json',
        renderer: 'svg',
        loop: false,
        autoplay: false
        });
        document.getElementById('hoverAnim').onmouseenter = () => anim.play();
    </script>
</body>
</html>

Plays the Lottie animation only when the user hovers over it.

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3

Lottie Click Toggle

# lottiefiles/demo/click-toggle.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <div id="toggleAnim" style="width:180px;height:180px;"></div>
    <script>
        let playing = false;
        const anim = lottie.loadAnimation({
        targets: document.getElementById('toggleAnim'),
        path: 'data/toggle.json',
        renderer: 'svg',
        loop: false,
        autoplay: false
        });
        document.getElementById('toggleAnim').onclick = () => {
        playing ? anim.pause() : anim.play();
        playing = !playing;
        };
    </script>
</body>
</html>

Toggles play/pause of the animation on click.

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4

Lottie Dark Mode Switch

# lottiefiles/demo/theme-switch.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <button id="toggle">Switch Theme</button>
    <div id="themeAnim" style="width:200px;height:200px;"></div>
    <script>
        let dark = false;
        const load = () => lottie.loadAnimation({
        targets: document.getElementById('themeAnim'),
        path: dark ? 'data/dark.json' : 'data/light.json',
        renderer: 'svg',
        loop: true,
        autoplay: true
        });
        let anim = load();
        document.getElementById('toggle').onclick = () => {
        anim.destroy();
        dark = !dark;
        anim = load();
        };
    </script>
</body>
</html>

Switches between two Lottie animations based on theme toggle.

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5

Lottie Scroll-Based Animation

# lottiefiles/demo/scroll.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body style="height:2000px;">
    <div id="scrollAnim" style="width:300px;height:300px;position:fixed;top:20px;left:20px;"></div>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('scrollAnim'),
        path: 'data/scroll.json',
        renderer: 'svg',
        loop: false,
        autoplay: false
        });
        window.onscroll = () => {
        const p = window.scrollY / (document.body.scrollHeight - window.innerHeight);
        anim.goToAndStop(p * anim.totalFrames, true);
        };
    </script>
</body>
</html>

Animation frame updates based on scroll progress.

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6

Lottie Speed Control Slider

# lottiefiles/demo/speed.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <input id="speed" type="range" min="0.2" max="3" step="0.1" value="1" />
    <div id="speedAnim" style="width:200px;height:200px;"></div>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('speedAnim'),
        path: 'data/speed.json',
        renderer: 'svg',
        loop: true,
        autoplay: true
        });
        document.getElementById('speed').oninput = e => anim.setSpeed(e.target.value);
    </script>
</body>
</html>

Controls animation speed using a range slider.

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7

Lottie Segment Playback

# lottiefiles/demo/segment.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <button id="part1">Play Part 1</button>
    <button id="part2">Play Part 2</button>
    <div id="segAnim" style="width:200px;height:200px;"></div>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('segAnim'),
        path: 'data/segment.json',
        renderer: 'svg',
        loop: false,
        autoplay: false
        });
        document.getElementById('part1').onclick = () => anim.playSegments([0, 60], true);
        document.getElementById('part2').onclick = () => anim.playSegments([61, 120], true);
    </script>
</body>
</html>

Plays only selected frame segments from the animation.

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8

Lottie JSON Inline Embedding

# lottiefiles/demo/inline.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <div id="inlineAnim" style="width:200px;height:200px;"></div>
    <script>
        const data = { v: '5.7.1', fr: 30, ip: 0, op: 60, layers: [] };
        lottie.loadAnimation({
        targets: document.getElementById('inlineAnim'),
        animationData: data,
        renderer: 'svg',
        loop: true,
        autoplay: true
        });
    </script>
</body>
</html>

Uses inline JSON instead of external file.

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9

Lottie Button Icon Animation

# lottiefiles/demo/button-icon.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body>
    <button id="btn" style="display:flex;align-items:center;gap:10px;">
        <span>Like</span>
        <div id="icon" style="width:40px;height:40px;"></div>
    </button>
    <script>
        const anim = lottie.loadAnimation({
        targets: document.getElementById('icon'),
        path: 'data/heart.json',
        renderer: 'svg',
        loop: false,
        autoplay: false
        });
        document.getElementById('btn').onclick = () => anim.play();
    </script>
</body>
</html>

Animates a Lottie icon inside a button on press.

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10

Lottie Background Animation

# lottiefiles/demo/background.html
<html>
<head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/bodymovin/5.9.6/lottie.min.js"></script>
</head>
<body style="margin:0;overflow:hidden;">
    <div id="bg" style="position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;"></div>
    <h1 style="color:white;position:relative;padding:20px;">Hello</h1>
    <script>
        lottie.loadAnimation({
        targets: document.getElementById('bg'),
        path: 'data/background.json',
        renderer: 'svg',
        loop: true,
        autoplay: true
        });
    </script>
</body>
</html>

A fullscreen background animation behind all content.

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Frequently Asked Questions about Lottiefiles

What is Lottiefiles?

LottieFiles is a platform and library ecosystem for rendering and sharing lightweight, high-quality animations on web, mobile, and desktop. It uses JSON-based Lottie animations exported from Adobe After Effects via Bodymovin, enabling scalable, interactive animations without heavy asset overhead.

What are the primary use cases for Lottiefiles?

Mobile and web app onboarding animations. Interactive icons and buttons. Progress indicators and loaders. Marketing websites with micro-animations. Cross-platform animations in Flutter, React Native, and web

What are the strengths of Lottiefiles?

Lightweight and high-performance compared to GIF/video. Scalable vector animations. Cross-platform compatibility. Easy integration into existing apps. Supports designer-developer workflow with After Effects

What are the limitations of Lottiefiles?

Requires After Effects/Bodymovin for authoring. Complex animations may increase JSON size. Limited support for 3D effects. Some SVG effects and expressions may not export correctly. Interactivity requires developer implementation

How can I practice Lottiefiles typing speed?

CodeSpeedTest offers 10+ real Lottiefiles code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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