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CacheSleuth

Animation Frame Splitter

Split animated images into individual frames for inspection.

Some puzzle caches hide information in individual frames of an animated image, where each frame may contain a letter, a coordinate fragment, or a clue that is only visible for a split second. Upload an animated GIF, WebP, APNG, or AVIF below and this tool extracts every frame so you can study them one by one.

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How it works

An animated image is a sequence of still frames, each displayed for a set duration. This tool walks every frame in the animation, draws it to an off-screen canvas, and captures it as a standalone PNG. The original frame dimensions and display duration are preserved in the output. On Chrome and Edge it uses the fast built-in ImageDecoder API; on Safari and Firefox, which lack that API, it falls back to a built-in GIF and APNG decoder so the common formats still work everywhere.

The grid view shows every frame side by side for quick visual scanning, which is often enough to spot hidden text or changing details. Click any frame to open it at full size, where you can step through one by one with the arrow buttons. You can also download all frames at once as a ZIP file.

Everything runs entirely in your browser. No data is uploaded anywhere.