Utiloom
Image Tools

Lottie Inspector

Inspect Lottie file structure, runtime stats, and delivery warnings before shipping an animation.

Inspect Lottie payload size and motion structure

Inspection

Unexpected end of JSON input

Paste or upload a Lottie JSON file to inspect it.

About this tool

Inspect Lottie JSON before handing it to engineering or shipping it in a landing page. Check size, layer complexity, and asset usage from one screen.

  • Shows canvas size, duration, frame rate, layer count, and asset count.
  • Flags common delivery risks like image-heavy animations and long durations.
  • Useful for design QA and developer handoff.

How to use Lottie Inspector

Open the interactive panel above, enter your content, and review the output instantly. Utiloom keeps processing in the browser whenever possible so you can move faster without adding server complexity.

Why people use this tool

Search-friendly utility pages work well when they answer a focused job clearly. This page includes descriptive metadata, structured copy, and FAQs to support both visitors and search engines.

Frequently asked questions

Does this preview the animation?

This tool focuses on inspection and warnings rather than playback controls. Use the Lottie Preview tool when you want interactive playback.

Can it catch heavy Lottie files?

Yes. It surfaces simple warnings around image assets, long duration, and high layer counts.