Split an Image into Equal Parts

Split an image into three equal parts

For three vertical strips, choose 1 row × 3 columns. For three horizontal strips, choose 3 rows × 1 column. These are three-piece layouts; 3 rows × 3 columns makes nine pieces. Choose By number of pieces when the result must contain exactly three files.

Choose the direction before you split

A vertical strip keeps the image's full height and takes one third of its width. A horizontal strip keeps the full width and takes one third of its height. You do not need a square source, and three equal rectangles do not have to be squares.

For the settings below, dimensions are written as width × height, while layouts are written as rows × columns. Keeping those two conventions separate prevents a tall strip from turning into a wide band by mistake.

Make and download the three pieces

1. Add one image. Use the upload area or browse files. Check the source dimensions shown in the queue. Clear the queue first if you want a ZIP containing pieces from only one source.
2. Choose a three-piece layout. For vertical strips, click the existing 1 × 3 Carousel preset. It selects Into columns, count mode and three columns. For horizontal strips, select Into a grid, then By number of pieces, set Rows to 3 and Columns to 1.
3. Choose PNG for the worked examples. Click Split images. Check that the result summary says 3 piece(s) and shows 1 row × 3 columns or 3 rows × 1 column. A nine-piece summary means you still have the 3 × 3 layout selected.
4. Check the previews. Read each tile's displayed width and height. Keep the left-to-right order for vertical strips and the top-to-bottom order for horizontal strips. After changing a setting, click Split images again to rebuild the results.
5. Save the ZIP. Click Download every piece as one ZIP. Unzip it and check that it contains three PNG files for your single source. The single-row and single-column layouts use names ending in _part01.png, _part02.png and _part03.png, in the same order as the previews. This order describes the source image, not a social platform's posting order. See the ZIP filename guide if you are working with several source images.

Checked PNG sizes: divisible and non-divisible inputs

We tested this page on 21 October 2026 with two original, numbered PNGs. Each configuration was split in the browser and downloaded as a real ZIP. The dimensions below were read from the three downloaded PNGs, not calculated from preview thumbnails.

On a narrow screen, swipe or scroll the table horizontally to see all three piece sizes.

For each run, we compared every decoded output pixel with its corresponding source rectangle. All four runs matched, and the three rectangles together covered the entire source. The checks covered 4,324,202 pixels, with zero differences, across these four PNG configurations. This is a result for these files and settings, not a test of every input format or size.

When will all three files have identical dimensions?

For vertical strips, the source width must be divisible by three; its height can be any supported size. For horizontal strips, the source height must be divisible by three; its width can be any supported size.

When the divided dimension does not divide evenly, count mode keeps all the pixels and gives the extra pixel or pixels to the first pieces, starting at the left or top. In the 1201-pixel width above, 401 + 400 + 400 = 1201. In the 901-pixel height, 301 + 300 + 300 = 901. The one-pixel difference is expected, rather than a missing edge.

If identical dimensions are required, prepare a source whose divided dimension is a multiple of three. Cropping to that size removes some of the picture; resizing changes its pixels. Decide which trade-off you want before splitting. Do not switch to By exact pixel size merely to force three files: it is a different cutting mode. For the three-piece workflow here, keep count mode selected and verify the file count after export.

How to split an image into four pieces

First choose the shape you need: quarters or strips. Rows run from top to bottom; columns run from left to right. A vertical strip is tall; a horizontal strip is wide. The settings below use the existing Into a grid mode with By number of pieces, so you can enter both row and column counts explicitly.

1. Choose a layout. Use 2 rows × 2 columns for four quarters. Use 1 row × 4 columns for left-to-right vertical strips, or 4 rows × 1 column for top-to-bottom horizontal strips.
2. Upload your image. Use the upload area on this page or its browse files button. For the dimensions in the table, start with a 1200 × 800 px image.
3. Enter the settings. Select Into a grid and By number of pieces. Set Rows first, then Columns, using the chosen pair above. Select PNG if you need transparent output.
4. Split and preview. Click Split images. Confirm there are exactly four pieces, check the displayed dimensions and positions, and compare their edges with your source. If you change settings, click Split images again to rebuild the results.
5. Download the ZIP. Click Download every piece as one ZIP. A 2-row × 2-column grid is named by position, from _r1c1 through _r2c2. A single-row or single-column result uses _part01 through _part04, in left-to-right or top-to-bottom order respectively.

Prefer a one-click quarters preset? Open the existing halves-and-quarters tool, then click 2 × 2 Quarters under Quick presets. The link opens the tool; it does not apply a setting automatically. Return here for the three layouts above or the nine-piece guide below.

When are the four pieces the same pixel size?

In count mode, identical tile dimensions require the image width to divide evenly by the number of columns and the height to divide evenly by the number of rows. Thus 1200 × 800 px divides exactly into all three four-piece layouts above. Four quarters are not necessarily square: 600 × 400 px is rectangular.

When a dimension does not divide evenly, this tool gives one extra pixel to the first pieces along that axis, starting at the left or top. For example, a 1201 × 801 px source split into 2 rows × 2 columns produces column widths of 601 and 600 px and row heights of 401 and 400 px. The four sizes are 601 × 401, 600 × 401, 601 × 400 and 600 × 400 px in row order. Neighboring widths or heights differ by at most one pixel; count mode keeps the entire source area.

Keep By number of pieces selected when you want exactly four pieces. By exact pixel size is a different workflow: it cuts fixed-size pieces and may leave a smaller final row or column. Its option to drop leftover edge pieces can discard those partial edges.

Need three pieces instead?

Use 1 row × 3 columns for three vertical strips, or 3 rows × 1 column for three horizontal strips. The existing 1 × 3 Carousel preset selects the vertical-strip layout. For nine pieces, keep the 3 rows × 3 columns instructions below.

How to split a picture into nine pieces

Posting order for a 3 × 3 profile grid

A profile grid fills from the newest post, so the last piece of the picture goes up first and piece 1 goes up last. Work down this table and the nine posts assemble themselves into one image.

Watch the 3:4 crop. Profile grids show each tile as a 3:4 portrait thumbnail, so a square tile loses a strip off the top and bottom until someone taps it open. Keep faces, text and anything important inside the middle 3:4 of each piece — or start from a portrait source such as 3000 × 4000 px, which makes all nine tiles 3:4 already and removes the crop entirely.