Image Splitter - Cut an Image Into a Grid Online

What Image Splitter Does

This tool takes one image and cuts it into a grid of separate image files. You choose how many rows and how many columns, from a single strip up to a 10 by 10 layout of 100 pieces, and each cell is copied straight out of the source onto its own canvas and encoded as its own file. The important word is copied. There is no scaling, no resampling, and no filtering involved: a cell is read from the source at its exact pixel coordinates and written to an output canvas of exactly the same size. When you pick PNG, which is lossless, every pixel in every piece is byte-for-byte identical to the region it came from, and reassembling the grid would rebuild the original image exactly. Picking JPG re-encodes each piece with the browser's lossy encoder, which introduces the usual compression artifacts, and any transparent area is flattened onto white because JPG has no alpha channel. Cut positions are computed as rounded fractions of the full width and height rather than by flooring a cell size, so no pixels are dropped at the edges and no cell reads past the boundary. The practical consequence is that when the dimensions do not divide evenly, cells differ from each other by at most one pixel instead of leaving a stray sliver at the right or bottom. Before you split anything, the grid lines are drawn over your image so you can see where the cuts will land. Everything runs in the browser, so the file never leaves your device.