Image Splitter

This image splitter cuts one PNG, JPG, WebP, GIF, BMP or AVIF picture into a grid of separate tiles — from 2 pieces up to 10 columns × 10 rows — in your browser. It is for Instagram grids and seamless carousels, printing a large picture across several sheets, puzzles, sprite sheets or any job that needs a picture cut into equal pieces, and the image is never uploaded.

Choose a preset (3 × 1 for a three-slide carousel, 3 × 3 for a nine-tile grid, 2 × 2, or halves) or type any number of columns and rows from 1 to 10. The preview draws the cut lines on your picture as you change them, and the line above it gives the tile count and size.

The tiles always cover the image exactly, with no gaps and no overlaps. When the size does not divide evenly, the leftover pixels are spread out so the tiles differ by at most 1 px: a 1000 × 1000 image in a 3 × 3 grid gives tiles of 333 and 334 px, and 1080 px across 7 columns gives 154, 154, 154, 155, 154, 154, 155. Nothing is resized — each tile is an exact copy of its part of the picture.

"Tiles" can also crop the centre of the picture first, so that every tile has exactly the same shape: Square, 4:5 portrait or 3:4 portrait. The largest whole-pixel crop that fits is used, and the shaded area on the preview shows what is cut away. A 4032 × 3024 photo split 3 × 3 with square tiles becomes a centred 3024 × 3024 area and nine 1008 × 1008 tiles; with 3:4 tiles it becomes nine 756 × 1008 tiles. A 3240 × 1080 panorama split 3 × 1 gives three 1080 × 1080 carousel slides, and 3240 × 1350 with 4:5 tiles gives three 1080 × 1350 slides.

Tiles are named after the original with their row and column, counted from the top-left: holiday-r1-c1.png, holiday-r1-c2.png and so on. Download them one at a time or click "Download all (.zip)" for a single archive. To build a 3 × 3 Instagram profile grid, post the tiles in reverse order — r3-c3 first and r1-c1 last — because the newest post appears top-left.

How it works: the browser decodes the image (phone photos are turned upright using their EXIF orientation), copies each tile's rectangle 1:1 onto its own canvas and encodes it. PNG is lossless; JPG and WebP tiles are re-compressed at the quality you set (92 by default). GIF, BMP and AVIF are saved as PNG for "Same as input", an animated GIF keeps only its first frame, and EXIF metadata is not copied. The limit is 50 MB per image. Each tile is drawn on its own canvas, so the canvas limits — 16,384 px per side, and about 16.7 megapixels on iPhones and iPads — apply to each tile, not to the whole picture.

Your image stays on your device: it is cut up in the page's memory and offered back as downloads, and the Network tab in your browser's developer tools shows no request carrying it.

1. The file's size is checked (50 MB) before it is read and its first bytes confirm it is PNG, JPG, WebP, GIF, BMP or AVIF; the browser decodes it upright. 2. Columns c and rows r must be whole numbers from 1 to 10, and not both 1. 3. With a tile shape aw:ah, the unit u = ⌊min(W ÷ (c·aw), H ÷ (r·ah))⌋ is found and the centred area (c·aw·u) × (r·ah·u) is used, so every tile is exactly (aw·u) × (ah·u). 4. Column boundaries are at ⌊i × width ÷ c⌋ for i = 0…c (rows likewise), so tile sizes add up to the full width and differ by at most 1 px. 5. Each tile's rectangle is copied 1:1 onto its own canvas and encoded, named <name>-r<row>-c<column>.<ext>. 6. "Download all (.zip)" stores the tiles in a standard ZIP archive (no recompression, since images are already compressed).