LongShot Stitcher

Drop your screenshots onto the page in top-to-bottom order — a chat thread, a long article, a multi-screen form. Drag the thumbnails to reorder; the preview updates instantly. Choose the output width: match the narrowest shot, the widest, or set a custom width in pixels. Add a little spacing between shots (8–16 px reads well) and pick a background color for the gaps. One click downloads the combined PNG, or copy it straight to your clipboard.

Every screenshot is drawn onto a single tall canvas in your browser. Each image is scaled proportionally to your chosen output width — nothing is stretched — and stacked with your spacing between them. The final height is simply the sum of the scaled heights plus the gaps, and the exact pixel dimensions are shown under the preview before you download, so there are no surprises. Because everything runs on canvas locally, the page keeps working even if your connection drops.

A support agent needs to send a client the full text of a 14-message chat. Each phone screenshot is 1170 × 2532. She drops all 14 in order, picks “narrowest” width (all shots are identical, so no scaling happens), sets 12 px spacing on a white background, and downloads. The result is a single 1170 × 35,616 px PNG — tall but perfectly readable — at about 2.1 MB. The client scrolls one image instead of opening fourteen attachments.

Browsers cap canvas sizes (around 16,000 px per side in some engines), so extremely long stitches can fail on older devices — if the preview struggles, stitch in two halves. Mixed portrait and landscape shots stack fine, but a wide landscape screenshot scaled to a narrow phone width becomes a thin strip; cropping the landscape shot first gives a better result. And stitching is vertical only — for side-by-side comparisons, a collage tool is the better fit.