Loona Image Grid Splitter — Split Any Image into an N×M Grid (ZIP)
Printing a poster across pages, making puzzle posts, preparing tiles for a gallery wall plan: whenever one image must become an exact grid, this is the cutter.
How to use the Image Grid Splitter
- Upload your image.
- Choose columns and rows (1–12 each). The preview draws the true cut lines, including how edge tiles absorb the odd pixels.
- Download the ZIP — tiles are named by row and column.
- Reassemble in order; the tiles cover the original exactly with nothing lost.
How it works
Cut positions are computed by cumulative rounding: each boundary sits at round(image size × index ÷ count), so neighbouring tiles share edges exactly — no 1-pixel gaps, no overlaps, and the union of tiles is the whole image to the pixel.
Worked example
A teacher splits a world map into a 4×3 grid, prints the tiles on A4, and the class assembles a wall map larger than the printer could ever make.
Frequently Asked Questions
How are odd pixel counts handled?
Boundaries use cumulative rounding, so some edge tiles are one pixel wider — the grid still covers the image exactly.
What are the tile files named?
tile-row-R-col-C.png, so reassembly order is obvious.
Maximum grid?
12 × 12 = 144 tiles. For Instagram profile grids, the dedicated 3-column splitter is faster.
Is my image uploaded?
No — everything happens on your device.