Animated image info from a URL
Paste a GIF or animated WebP URL to count frames, sum per-frame delays into a total duration, and see whether it loops indefinitely — handy when sizing an animation for a chat or timeline embed.
How it works
For GIFs, swiftimg counts Image Descriptor records and sums the delays from each Graphics Control Extension. For animated WebP, it parses the RIFF container, finds the ANIM chunk for loop behaviour, and counts ANMF chunks for frames and durations. Both run server-side from a single fetch of the URL.
Want smaller animations automatically?
swiftimg auto-converts uploaded GIFs to animated WebP — typically 5-10x smaller — and serves both from a global CDN.