PicMason

Image splitter

Preview your grid. Export every piece.

Images stay on your device. Your original is unchanged.

Pick an image to try its layout. All settings are yours to change.

One picture, different layouts

Choose a grid.
Or go in one direction.

Turn a photo, illustration or design into separate image files for a layout or web project. Set both rows and columns for a grid, or divide the image into horizontal or vertical strips.

The preview shows every cut and its number. The whole image stays in the plan, with no stretching or automatic cropping.

Coastal photo split horizontally: strip 1 of 3, 1448 by 362 pixelsCoastal photo split horizontally: strip 2 of 3, 1448 by 362 pixelsCoastal photo split horizontally: strip 3 of 3, 1448 by 362 pixels
3 horizontal strips
Coastal photo split vertically: strip 1 of 4, 362 by 1086 pixelsCoastal photo split vertically: strip 2 of 4, 362 by 1086 pixelsCoastal photo split vertically: strip 3 of 4, 362 by 1086 pixelsCoastal photo split vertically: strip 4 of 4, 362 by 1086 pixels
4 vertical strips
Tile 1 from a coastal photo split into a 3 by 4 grid, row 1, column 1, 362 by 362 pixels
Tile 2 from a coastal photo split into a 3 by 4 grid, row 1, column 2, 362 by 362 pixels
Tile 3 from a coastal photo split into a 3 by 4 grid, row 1, column 3, 362 by 362 pixels
Tile 4 from a coastal photo split into a 3 by 4 grid, row 1, column 4, 362 by 362 pixels
Tile 5 from a coastal photo split into a 3 by 4 grid, row 2, column 1, 362 by 362 pixels
Tile 6 from a coastal photo split into a 3 by 4 grid, row 2, column 2, 362 by 362 pixels
Tile 7 from a coastal photo split into a 3 by 4 grid, row 2, column 3, 362 by 362 pixels
Tile 8 from a coastal photo split into a 3 by 4 grid, row 2, column 4, 362 by 362 pixels
Tile 9 from a coastal photo split into a 3 by 4 grid, row 3, column 1, 362 by 362 pixels
Tile 10 from a coastal photo split into a 3 by 4 grid, row 3, column 2, 362 by 362 pixels
Tile 11 from a coastal photo split into a 3 by 4 grid, row 3, column 3, 362 by 362 pixels
Tile 12 from a coastal photo split into a 3 by 4 grid, row 3, column 4, 362 by 362 pixels
3 rows × 4 columns = 12 pieces1448 × 1086 px source · each tile 362 × 362 px

How to split an image

From a local file to an organized set of tiles.

  1. Choose your image

    Drop one JPEG, PNG or WebP into the tool, or choose a file. Try the sample if you want to explore first.

  2. Set the cuts

    Choose a grid or strips. Adjust the rows and columns, then check the boundaries and dimensions in the preview.

  3. Generate and download

    Pick PNG, JPEG or WebP and generate the tiles. Download individual pieces or the complete ZIP with its size list.

25252526
Tile 1 from a 101 by 103 PNG split into 3 rows and 4 columns, row 1, column 1, 25 by 34 pixels
Tile 2 from a 101 by 103 PNG split into 3 rows and 4 columns, row 1, column 2, 25 by 34 pixels
Tile 3 from a 101 by 103 PNG split into 3 rows and 4 columns, row 1, column 3, 25 by 34 pixels
Tile 4 from a 101 by 103 PNG split into 3 rows and 4 columns, row 1, column 4, 26 by 34 pixels
Tile 5 from a 101 by 103 PNG split into 3 rows and 4 columns, row 2, column 1, 25 by 34 pixels
Tile 6 from a 101 by 103 PNG split into 3 rows and 4 columns, row 2, column 2, 25 by 34 pixels
Tile 7 from a 101 by 103 PNG split into 3 rows and 4 columns, row 2, column 3, 25 by 34 pixels
Tile 8 from a 101 by 103 PNG split into 3 rows and 4 columns, row 2, column 4, 26 by 34 pixels
Tile 9 from a 101 by 103 PNG split into 3 rows and 4 columns, row 3, column 1, 25 by 35 pixels
Tile 10 from a 101 by 103 PNG split into 3 rows and 4 columns, row 3, column 2, 25 by 35 pixels
Tile 11 from a 101 by 103 PNG split into 3 rows and 4 columns, row 3, column 3, 25 by 35 pixels
Tile 12 from a 101 by 103 PNG split into 3 rows and 4 columns, row 3, column 4, 26 by 35 pixels
343435
101 × 103 px PNG · 3 rows × 4 columns
Actual exported pieces, enlarged to show the boundaries.

The extra pixel has a place

Not evenly divisible?
Nothing gets left out.

A 101 × 103 px image cannot divide into 12 identical pieces. Its four columns are 25, 25, 25 and 26 px wide; its three rows are 34, 34 and 35 px high.

The first tile is 25 × 34 px. The last is 26 × 35 px. Those slightly larger edge pieces keep the full picture covered, with no missing or repeated pixels between cuts.

Download the 101 × 103 sample See how the boundaries work

Pick the right output

Keep transparency.
Or choose a background.

PNG
Use it for transparent edges and graphics. It keeps usable transparency from the decoded image.
JPEG
Use it when you want a solid background. Choose its color and a quality from 10–100; JPEG recompresses the image.
WebP
Keep transparency with adjustable, lossy compression. Set a quality from 10–100. Check that the app receiving your tiles accepts WebP.
Compare transparent image exports
PNG corner tile with transparent top and left areas and a coral block at the lower right

PNG

Transparent edge

JPEG corner tile with white replacing the transparent top and left areas

JPEG

White background · quality 92

The same 25 × 34 px corner tile, enlarged.
Checkerboard shows transparency; it is not in the PNG.

coast-3x4-tiles.zip

  • coast-r01-c01.png362 × 362 px
  • coast-r01-c02.png362 × 362 px
  • … 12 image files in total
  • dimensions.csvTile sizes
  • manifest.jsonCoordinates
  • READ-ME.txtExport notes
Download this example ZIP

An order you can follow

Every piece has
a place and a name.

Tiles run left to right across each row, then top to bottom. Filenames include the row and column: r01-c01 means row 1, column 1. A simplified version of your source filename becomes the prefix.

The complete ZIP includes every piece, a CSV of dimensions, a JSON manifest with coordinates, and export notes. You can also download tiles individually and save the CSV separately.

Read the tile order and naming guide

Before you export

Image splitter FAQs

Sizes, formats and a few practical details.

How your image stays local
Can I split an image into equal parts?

Yes, when its width and height divide evenly by your chosen columns and rows. Otherwise, the pieces differ by at most one pixel. All edges are kept. Splitting does not crop or pad the image into equal squares.

How do I split an image horizontally or vertically?

Choose Horizontal strips to set the number of rows with one column. Choose Vertical strips to set the number of columns with one row. Grid lets you choose both. Check the numbered preview before generating files.

Does splitting reduce image quality?

The split keeps the source pixel dimensions without resizing. PNG retains the decoded image and usable transparency. JPEG and WebP use lossy compression at your selected quality; WebP can also keep transparency. Browser decoding can affect colors and partial transparency. Exports do not preserve the original compressed bytes, EXIF, GPS, ICC or DPI metadata.

Which image formats and sizes are supported?

Choose one static JPEG, PNG or WebP, up to 20 MB (20 × 1024² bytes), 24 megapixels and 16,384 pixels per side. Use 1–10 rows and 1–10 columns, up to 100 pieces. Each piece must be at least one pixel wide and high. Animated files, SVG, AVIF and HEIC are not supported. Smaller images are recommended on phones.

Can I use the tiles for a social media grid or printing?

You can download the pieces for use in another app. This tool preserves the full rectangular image; it does not add square crops, platform-specific layouts, posting order, print overlap or page-size settings. Check the destination’s current size requirements before publishing or printing.

Are my images uploaded? Do I need an account?

Your selected image is processed in your browser and is not sent to a server. The original file is not changed. There is no account or payment step. Clear removes the current image and generated results from the tool; downloaded files remain on your device.

Where do downloads go on my phone?

Your browser chooses where files are saved. Check Downloads or the Files app, then unzip the archive. If a ZIP download does not save, try individual tile links. Clicking a download link tells the browser to save a file; it cannot confirm that your device saved it.

A closer look at your results

All guides
Dimensions

Where the extra pixels go

Follow a 101 × 103 px image through a 3 × 4 split.

Sequence

Read your tiles in order

Match each filename to a row, column and position.

Transparency

Choose the right background

See what PNG keeps and what JPEG fills in.

Have an image ready?

Back to the image splitter