FormatDogWorkspace
Upload a collage image arranged in a grid — say, 25 photos combined into one 5×5 sheet — and get back every individual photo as its own file. Each grid line is detected directly from the image, not just assumed to be perfectly equal, so slightly uneven margins don't throw off the split. Entirely in your browser.
No signup · No file limits · Files never leave your deviceDefaults to a 5×5 grid — the detected grid lines show up immediately as a preview.
Adjust the numbers if your collage isn't 5×5, then click "Update Preview" to re-detect.
Every individual photo downloads as its own JPEG, packaged into one ZIP.
Each internal grid line is located by searching a window around where it would fall under perfectly equal spacing, for the row or column with the flattest, most uniform pixel values — the actual border or gutter between two photos, since a solid-colored margin reads as far more uniform than the textured photo content on either side of it. If your collage's margins are already perfectly even, this lands on essentially the same result equal spacing would; if they're not, it corrects for the difference.
If photos are butted directly against each other with no gutter at all, there's no flat line for this method to find, so that grid line falls back to the exact equally-spaced position instead of guessing at a false one.
Double-check the Rows/Columns numbers match your actual grid and click "Update Preview" — a mismatched grid size is the most common reason a detected line looks off, not the detection itself.
Any common image format your browser can display — JPEG, PNG, WebP, and more. Every individual output image downloads as a JPEG inside one ZIP file.
No. The image is loaded, analyzed, and split entirely inside your browser tab.
Yes, completely free with no daily limit.
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Pinch or use +/− to zoom, two fingers to pan. One finger to drag and redact.
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Drag the corner handles to resize the crop area, or drag the middle to move it.
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Detecting grid lines…
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Click any line of text to retype it. Pinch or use +/− to zoom.