Image splitter
Cut one picture into a grid of tiles, into carousel slides that join up when swiped, or into a big poster printed across A4 or Letter pages. The image never leaves this device.
Open an image, then pick Grid, Carousel or Poster.
Split into
Drag the picture in the preview to move the crop.
Download
Output: –
No metadata is kept. Every tile, slide and page is a new picture drawn on a canvas, so no EXIF data, GPS location, camera model or date taken from your photo is copied into it.
Privacy: the image is cut in your browser and never uploaded. It is opened and drawn inside this page with the browser's own canvas, and the ZIP and PDF are put together here too. Nothing is saved after you close the tab, and the page keeps working in airplane mode once it has loaded.
How to split an image
- Open the picture. Tap Choose an image, drop a file on the box, or press Ctrl+V (⌘V on a Mac) after copying a screenshot.
- Pick what to make. Grid cuts it into rows and columns (1 to 10 each). Carousel makes 2 to 10 slides that run on from each other. Poster spreads it over A4 or Letter sheets to print and tape together.
- Check the cut lines. The preview draws every cut over the image. For a carousel, drag the picture or use the slider to choose what stays in the strip; for a poster, the shaded bands are the overlap that neighbouring sheets share.
- Download. Download all saves one ZIP of every tile; Save one by one lists each tile with its own link, which is easier on a phone where a ZIP is awkward to open. Poster mode saves one PDF with a page per sheet.
- For a poster, print at 100 %. Choose Actual size or 100 % in the print dialog, not Fit to page, or the overlaps will not line up.
What it cannot do
- It does not print at a size you type in. A poster is as big as its sheet grid allows: the picture is fitted whole into the sheets and centred, and the page tells you the printed size and resolution. For a different size, change the number of sheets or the orientation.
- Very large images may be slow on a phone. A 48-megapixel photo cut into 100 tiles, or a 10 × 10 sheet poster, takes several seconds and a lot of memory; a laptop copes better.
- It does not upload or post anything. It makes the files; you post the carousel or grid yourself from the app on your phone.
- It does not add more detail. A small image stretched across 10 slides or 9 sheets looks soft; the page warns when slides are scaled up and shows the print resolution of a poster (about 150 ppi or more looks sharp at arm's length).
- Nothing is kept. Close or reload the tab and the image is gone; download first. HEIC photos open only in browsers that can show HEIC (Safari does; most others do not).
How the cuts are worked out
| Mode | What you get | Worked example |
|---|---|---|
| Grid | rows × columns tiles at the image's own pixels, nothing scaled | a 1,000 × 1,000 px photo in 3 × 3 gives tiles 333, 334 and 333 px wide and tall, which add back up to 1,000 |
| Carousel | slides of exactly 1,080 × 1,350 or 1,080 × 1,080 px, cut from one long strip | 3 portrait slides need a 3,240 × 1,350 strip; a 4,000 × 3,000 photo is scaled to 81 % and the top and bottom are cropped to fit it |
| Poster | one PDF page per sheet, each with an 8 mm margin, the overlap, cut marks and a label | a 4,000 × 3,000 photo on 2 × 2 A4 landscape sheets with 10 mm overlap prints 50.4 × 37.8 cm at about 200 ppi |
The overlap is picture that appears on both neighbouring sheets: trim the white margin off one sheet along that edge and lay it over the other, matching the picture, and the join is hidden. With overlap 0 the sheets butt edge to edge, which needs very accurate trimming.
Questions
How do I split a picture into a seamless carousel for a post?
Choose Carousel, set the number of slides and pick 1080 × 1350 (4:5 portrait) or 1080 × 1080 (square). The image is scaled to cover one long strip of all the slides, 3,240 × 1,350 px for three portrait slides, and cut at every 1,080 px, so the edge of one slide continues on the next. Drag the preview or use the crop slider to choose which part is kept. Upload the slides in order 1, 2, 3 as one carousel post. Apps such as Instagram show every slide at the first slide's shape, so keep all slides the same size.
How do I make a 3 × 3 grid for a profile page?
Choose Grid, set 3 rows and 3 columns and tick Number files in posting order. The nine files are then numbered 01 to 09 starting from the bottom-right tile, because a profile grid shows the newest post first: post 01 first and 09 last and the picture assembles itself. Instagram's profile grid has shown posts as 3:4 rectangles since early 2025, so square tiles lose a strip at their left and right edges in the grid view; each post still shows the whole tile when opened.
How do I split an image into 3 equal parts?
Choose Grid and press 3 across (1 row, 3 columns) for three side-by-side pieces, or 3 down for three strips stacked top to bottom. Cuts fall on whole pixels, so a 1,000 px wide image becomes pieces 333, 334 and 333 px wide that add back up to exactly 1,000 px with nothing lost or repeated.
How do I print a big poster on several A4 pages?
Choose Poster, pick A4 or Letter, portrait or landscape, and how many sheets across and down. Each sheet keeps an 8 mm white margin and repeats 10 mm (adjustable) of the picture from its neighbour. 2 × 2 A4 landscape sheets give a poster area of 55.2 × 37.8 cm. Download the PDF, print it at 100 % or Actual size (not Fit to page), trim the margin from the edges that overlap, and line the sheets up using the cut marks and the row · col label on each page.
Is the image uploaded, and is its metadata kept?
No to both. The image is opened and cut inside this page by your browser and never sent to a server. Every tile, slide and poster page is a new picture drawn on a canvas, so no EXIF data, GPS location, camera model or date taken is copied into it. The page sends only an anonymous page-view count and one fixed event name when you download, never the image, its name or its size.