Image splitter: cut a picture into equal tiles

How to split an image into tiles

1. Press Select image and choose a picture, or drop it on the page. JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, ICO and iPhone HEIC photos all open.
2. Pick one of the Quick grids, or set the Rows and the Columns yourself.
3. Check the cuts on the stage. Dashed lines show where the picture will be cut, and each tile shows its number.
4. Switch on Make every tile square if the tiles must be squares.
5. Leave Save as on Original, or pick JPG, PNG or WebP, then press Split.
6. Press Save all as ZIP to save every tile in one file.

The panel always says how many tiles you will get and the size of each tile in pixels, so there are no surprises when you open the files. The image splitter takes one picture per run: if you select several, only the first one is opened.

Split an image in half, into strips or a grid

To split a photo in half down the middle, pick the 2 halves Quick grid: it sets 1 row and 2 columns, so you get a left half and a right half. To cut the image in half across the middle instead, set Rows to 2 and Columns to 1 for a top half and a bottom half. When the picture has an odd number of pixels across (or down), the second half is one pixel larger.

The Quick grids cover the splits people make most often. Pressing one sets the Rows and Columns for you, and the chip stays marked while the grid matches it.

To split an image into a grid of your own, use the Rows and Columns steppers. Each goes from 1 to 10, so a grid can have up to 100 tiles. One row with several columns cuts the picture into tall strips side by side, and one column with several rows into wide strips stacked from top to bottom, up to ten of them. One row and one column is the whole picture, so the panel then says 1 × 1 is the whole picture. Add a row or a column.

A grid of equal cells also works for picture sheets, such as a set of icons or game sprites laid out in even rows. Set the Rows and Columns to match the sheet and each cell comes out as its own file.

Tile sizes and square tiles

Each tile is the picture's width divided by the columns and its height divided by the rows. A 3000 × 2000 photo in a 2 × 2 grid gives four tiles of 1500 × 1000 pixels. The Each tile line in the panel shows that size before you press Split.

Pixels cannot be cut in half, so when the size does not divide evenly the last row and the last column take the pixels left over. The panel then adds a Last tile line with its own size: a 3001 × 2001 picture in a 3 × 3 grid gives tiles of 1000 × 667 and a last tile of 1001 × 667. To split a picture into equal parts down to the pixel, use a picture whose size divides by your grid, or switch on square tiles.

• Make every tile square crops the picture to the grid's shape first, then cuts it. With 3 columns and 2 rows the part that is kept is three squares wide and two squares tall.
• A box appears on the stage, as large as fits and centred. Drag it to choose the part of the picture to use, and the grid moves with it.
• Every tile is then exactly the same square of whole pixels, with no leftover on the last row or column.

The cut can never make a tile smaller than 8 pixels. If a small picture and a large grid would do that, the panel says Tiles would be smaller than 8 pixels, and you need fewer rows or columns.

How the tiles are named and saved

Tiles are numbered in reading order: left to right along the top row, then the next row down. Each file keeps your picture's name with a two-digit number added, so beach.jpg cut into a 3 × 3 grid gives beach_01.jpg to beach_09.jpg, and beach_01 is the top left tile.

• Original keeps the picture's own format where the tool can write it: a JPG stays a JPG and a PNG stays a PNG. An iPhone HEIC photo becomes a JPG, and a GIF, BMP or TIFF becomes a PNG.
• JPG and WebP are saved again at high quality, so the tiles look the same as the picture. PNG keeps every pixel.
• Each tile is drawn fresh, so it carries no location, camera or date details, and a sideways phone photo comes out the right way up.

When the tiles are ready, the done screen lists them and Save all as ZIP saves them together. The file size shown in the panel before you split is an estimate for all the tiles together.

Privacy, browsers and related tools

• The picture is cut inside your browser. It is never uploaded, and our server does no picture work.
• It is free, with no account and no watermark. Image tools are not counted in the free daily limit, which applies to document conversions only.
• It works in current Chrome, Edge and Firefox. Very large pictures may be too big for your browser to open.

For a nine-tile post there is a page set up for it: the Instagram preset opens with 3 rows and 3 columns. To put tiles or other pictures back together, use Merge images. If the picture should face the other way, flip the photo before you split it, or make an upside down image with a top-to-bottom flip.

When you need one shaped picture rather than a grid, crop instead. You can crop the picture to a square by dragging a box that stays square, make the image square by adding space around it so nothing is cut off, or circle crop the image for a round profile picture. Each of them takes several pictures in one run, so a set of tiles can go through together.