Free tool

Lottie viewer.

Drop in a Lottie or dotLottie file to preview it, scrub it frame by frame and see it on a light, dark or transparent background. The details panel shows the file size, frame rate, layers and every color it uses. It all runs in your browser, nothing is uploaded.

Drop a Lottie file here, or click to browseJSON or dotLottie (.lottie). You can also paste the JSON.

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See how it works

About this tool

Preview a Lottie animation in your browser. Drop a JSON or dotLottie file to play it, scrub it frame by frame, and test it on a light, dark or transparent background. The details panel shows what matters before it ships: file size, dimensions, frame rate, duration, layer count, embedded images and every color it uses. Nothing is uploaded.

How to use it

  1. Drop a Lottie JSON or dotLottie file onto the viewer, or paste the JSON.
  2. Play, pause or drag the timeline to check any frame, and switch the background between Light, Dark and Transparent.
  3. Read the file details, and click a color to copy its hex code.

Frequently asked questions

JSON is the original Lottie format. A dotLottie file (.lottie) is a zipped version that can hold the animation and its images in one file, and it is usually much smaller. The viewer opens both.

Lottie players support most After Effects features, but not all of them. Some effects and blurs are dropped on export. Expressions are exported, but this viewer and the iOS and Android players do not run them, while the web player does. If your file shows a Uses expressions tag, check it where it will ship.

Embedded images are the usual cause, followed by long animations with many keyframes. The details panel shows both, so you can see where the weight comes from. Our Lottie editor can compress the rest.

No. The animation plays in your browser and never leaves your device.