Image Merger

An image merger combines several separate pictures into one single image file. That sounds simple, but doing it well by hand in Photoshop or a phone editor takes a surprising number of steps: align canvases, match dimensions, manage spacing, choose a background. This tool does it all server-side in one click and gives you a polished result back.

Pick from three layouts. Horizontal stitches images left to right, automatically matching them to the smallest height so the seam is clean. Vertical stacks them top to bottom, matched to the smallest width — perfect for screenshot threads, chat conversations, or before/after comparisons. Grid arranges N images in a configurable number of columns with equal-sized cells, ideal for product line-ups, mood boards, and social-media composites.

You control every important visual detail: spacing between images (0–100 px), background color (any hex value), and PNG transparency for graphics that need a true alpha channel. Cell alignment in grid mode lets you push images to the start, center, or end of each cell when sizes differ. Output is either PNG (lossless, supports transparency) or JPG (smaller files for photo-heavy merges).

Everything runs on our servers using ImageMagick — the same library that powers most professional image pipelines — so colors, EXIF orientation, and pixel fidelity stay correct. Uploads are processed in memory and discarded immediately. No accounts required for the free daily quota, and signed-in users only spend 1 credit per merge.