Seamless carousel generator

1. Drag your panoramic photo onto “Drop a panoramic image here”, click to select it or paste it with Ctrl+V (Cmd+V on a Mac).
2. Under “Tile shape”, choose “4:5 Portrait” or “1:1 Square”. The “Slice preview” marks where each tile will go with dashed lines and numbers.
3. Check the summary bar: it shows how many slides you will get, their size in pixels and whether there is a “perfect fit” or “+ edge fill”. If there is fill, choose “Blurred” or “Solid colour” under “Edge fill”.
4. Press “Generate slides”. The tiles appear below, numbered in order.
5. Press “Download all” or click a slide to download it on its own. Upload them to Instagram in a single post, in the order of their numbers.

Each slide is the same height as your image, and its width comes from the ratio: four fifths of the height for 4:5 and the same as the height for 1:1, rounded to the pixel. A 4000 × 1000 px image gives five 800 × 1000 slides at 4:5, or four 1000 × 1000 slides at 1:1, both a perfect fit.

The tool does not scale the image: the tiles keep the original resolution and are saved as PNG, a lossless format. Each file is named after the photo, followed by the word “carousel” and its number: photo-carousel-1.png, photo-carousel-2.png and so on.

If you change the shape or the fill after generating, the slides are discarded and you need to press “Generate slides” again.

The number of slides is the image width divided by the width of each tile, rounded to the nearest whole number. If the division is not exact, the bar shows “+ edge fill” and the difference is split equally between the first and last slides.

When the rounding goes up, there is space left over and it is filled: with “Blurred”, an enlarged, blurred version of the edge of the photo itself, or with “Solid colour”, which offers white, black, two greys and a “Custom colour”. When the rounding goes down, there is not enough space and both ends of the photo are cropped equally.

For example, a 3000 × 1000 image at 4:5 gives 3.75 tiles: you get 4, with 100 px of fill on each side. A 2600 × 1000 image gives 3.25: you get 3 and lose 100 px on each side.

If you want neither fill nor cropping, try the other shape: the same 3000 × 1000 image fits exactly into three 1:1 slides. You can also crop the photo beforehand so its width is a multiple of the tile width.

No. The image is read and sliced in your browser, and the slides are created on your device. “Clear” removes the image so you can start with another.

The tool does not post to Instagram or connect to your account: it only prepares the tiles. For a clean transition from one to the next, upload them all together in one post and do not change the crop in the app.