About this tool
Preview Lottie animations directly in the browser when you need to review motion files, validate playback, and check dimensions or asset weight before handoff.
Lottie Preview is useful when animation JSON needs a fast visual QA pass before handoff or release. It helps teams inspect playback, dimensions, frame timing, and asset weight without opening a design app or shipping the file into a staging build first.
- Supports pasted or uploaded Lottie JSON with instant browser-side rendering.
- Includes play, pause, loop, speed, background, and preview size controls.
- Shows useful animation insights like canvas size, duration, frame rate, layer count, and image assets.
How to use Lottie Preview
Paste or upload the Lottie JSON, review the playback with the preview controls, and check the animation stats before approving the asset. If the file is headed for production, use the preview to catch timing or sizing issues early so implementation does not start from a bad export.
When this tool is useful
- Supports pasted or uploaded Lottie JSON with instant browser-side rendering.
- Includes play, pause, loop, speed, background, and preview size controls.
- Shows useful animation insights like canvas size, duration, frame rate, layer count, and image assets.
Examples you can test
Load an example, compare the result with the expected output, then replace it with your own input.
Preview a loading animation
Example input
Lottie JSON exported from a motion tool
Expected output
Playable browser preview
Previewing before implementation helps catch missing assets, wrong dimensions, or timing issues.
Check animation loop behavior
Example input
Lottie file with loop enabled
Expected output
Repeated playback in the preview area
Loop behavior should match the intended UI state, especially for loaders and success states.
Validation checklist
- Check file size, dimensions, duration, and loop behavior before shipping.
- Preview the animation in the browser where it will run.
- Review performance when the animation contains many layers or assets.