Lottie Animation Accessibility Checker
Run a quick, practical review before shipping. The checklist highlights timing, assets, and reduced-motion decisions that deserve a human check.
Ready.
What the checker looks for
- A valid Lottie structure, dimensions, frame rate, and duration.
- Potentially heavy image assets that may affect low-bandwidth users.
- A reminder to provide a reduced-motion or static fallback.
FAQ
Can a score guarantee accessibility?
No. Accessibility includes the surrounding UI, timing, controls, contrast, and user testing.
Is my file private?
Yes. Analysis runs in this browser.
Use the score as a review prompt, not a certificate
The checker reads structure, dimensions, frame rate, duration, image assets, and expression-like payloads in a background worker. Those signals help a team notice heavy or long-running motion early. They cannot prove that an animation is comfortable for every viewer.
Finish the visual checks yourself
Play the animation in its real interface and look for rapid flashes, large brightness changes, distracting loops, and controls that move away from the pointer. Test the operating system’s reduced-motion preference and provide a static or calmer state. Also check that essential meaning is available in text; an animation should not be the only messenger in the room.
Share the report with context
Download the JSON audit report and attach it to the handoff, then write down the human decisions made for pause controls, contrast, motion reduction, and keyboard behavior. That combination is far more useful than a mysterious green score.