Long-image Splitter
Split overlong screenshots by height, order kept, processed on-device
🖼️
Click or drop images here (multiple OK)
Processed locally — nothing is uploaded
When to split
Overlong chat logs and stitched step-by-step screenshots hit height limits when you send them to groups or platforms — slice them by height so each piece fits, with sequential numbering (xxx_01, xxx_02…) holding the reading order.
Splitting and stitching are a pair
"Image Collage" merges screenshots into one long image in order; "Long-image Splitter" cuts it back apart. The two tools hand off to each other — no re-uploading. For nine square tiles for your feed, use "Nine-grid Splitter".