How can I optimize the loading time of Lottie animations in Webflow?
TL;DR
- Compress and simplify the Lottie JSON file using tools and clean exports from Bodymovin.
- Host efficiently via Webflow or CDN, enable lazy loading, and trigger animations only when needed to reduce load time and improve performance.
Optimizing Lottie animation loading times in Webflow involves reducing file size, choosing the right format, and using proper embed techniques.
1. Optimize the Lottie JSON File
- Compress your animation using tools like LottieFiles.com which reduce file size without losing quality.
- Remove unused layers or assets from the After Effects file before exporting.
- Minimize complex paths, masks, and effects that can increase file size and load time.
2. Use the Right Export Settings (Bodymovin)
- Use the latest Bodymovin plugin in After Effects to export your animation.
- Avoid raster effects or unsupported features that may increase size or break the animation.
- Uncheck "Include in JSON" for unnecessary assets/layers in the Bodymovin UI.
3. Host the File Efficiently
- Upload the Lottie file to Webflow’s asset manager or embed it via LottieFiles’ CDN for faster delivery.
- If using Webflow’s Asset Manager, ensure the animation is under 4MB, the platform’s file limit.
4. Enable Lazy Loading
- In the Lottie element settings, set the animation to load only when it enters the viewport ("Scroll into view") to delay loading off-screen assets.
- This prevents unnecessary loading during initial page render, improving performance.
5. Limit Autoplay and Loop Options
- Avoid setting animations to autoplay unless essential.
- Use triggered animations (such as scroll or click) to delay when the animation starts.
- Disable looping unless necessary, which can reduce CPU usage post-load.
6. Convert to Static Images When Appropriate
- If the animation is short or subtle, consider using a static SVG or GIF instead, which may load faster in some cases.
7. Test With Web Performance Tools
- Use tools like Google PageSpeed Insights, Lighthouse, or WebPageTest to analyze actual performance impact.
- Look for large Lottie files appearing in the “Reduce unused JavaScript” or “Efficient encoding” recommendations.
Summary
To optimize Lottie animation loading in Webflow, compress the JSON file, minimize complexity, use lazy loading, and trigger animations via interactions. Hosting via CDN and avoiding autoplay help improve speed without sacrificing animation quality.