Split Image

Splitting an image is useful for Instagram grid posts and carousel panoramas, for printing a poster across several sheets, for cutting a long phone screenshot or webtoon page into parts an app will accept, and for making game or map tiles. Choose a grid of rows and columns, fixed-size tiles, or strips of a set height or width. The pieces are cut in your browser and keep the original pixels.

How to use this tool

1. Choose one or more images.
2. Pick how to split: a rows × columns grid, fixed-size tiles, horizontal strips or vertical strips.
3. Enter the rows and columns, or the tile or strip size in pixels; add an overlap if pieces should share an edge.
4. Download the pieces one by one or all together as a ZIP. Names follow the order (row and column, or strip number).

Formula

Grid: border k = round(k × W ÷ columns) (likewise for rows). Tiles and strips: pieces start every (size − overlap) px; the last piece ends at the image edge.

W is the image width in pixels. When the width is not a multiple of the column count, the rounding makes some pieces 1 px wider, so nothing is lost or stretched. Overlap is added to inner borders in grid mode. Pieces are saved in the original format (PNG when unsure); JPG and WebP are re-encoded at the quality you set.

Example

A 3000 × 2000 px photo in a 3 × 3 grid gives nine pieces 1000 px wide; the rows split at round(2000 ÷ 3) = 667 and round(4000 ÷ 3) = 1333, so they are 667, 666 and 667 px tall. A 1080 × 9000 px webtoon page cut into 1280 px horizontal strips gives eight strips: seven of 1280 px (7 × 1280 = 8960) and a last one of 9000 − 8960 = 40 px. Tick the drop option to leave that sliver out.