Use screenshots from one device and keep their widths consistent. Drag the list to correct the order before analyzing adjacent pairs.
High-confidence overlap suggestions can be used immediately. Low-confidence or unmatched pairs stay blocked until you inspect the overlay and confirm the crop.
Images stay on this device. Output is stopped before allocation when dimensions, pixels, or estimated memory exceed the conservative browser limit.
Common questions and answers about this topic.
Use 2–12 vertical screenshots from the same device, keep their widths consistent, and add them in reading order with visible overlap between adjacent images. You can reorder them before analysis.
The tool marks that seam for review instead of guessing. Compare the overlay, adjust the crop positions if needed, then confirm the seam before export.
Yes. Adjust the bottom crop of the earlier image and the top crop of the next image, compare the overlay or result preview, then confirm the seam. Crop settings that remove all usable content are blocked.
Add 2–12 PNG, JPG, or WebP images. Each file can be up to 20 MiB and the total up to 120 MiB. Export is available as PNG or JPG; very large canvases may be limited by your device.