Cut a panorama or wide design into equal carousel slides that line up perfectly as people swipe: portrait 4:5 or square, numbered and ready to post.
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Works on phone and desktop.
Instagram shows one frame at a time, so a beautiful panorama posted as a single image turns into a thin strip, or gets cropped down to its middle. The fix that photographers and designers use is the seamless carousel: one wide image cut into equal slides that line up exactly, so the picture continues as people swipe.
This splitter makes those slides for you. It crops the centre of your image to the right overall shape, cuts it into equal portrait 4:5 or square slides with exact pixel dimensions, numbers them in posting order and packs them into a ZIP. All of it runs in your browser.
Before
Wide photo
4000 × 3000
One image Instagram would crop to a single frame.
After
3 portrait slides
3 × 1332 × 1665
Exactly 4:5 each, cut from the centre of the photo, numbered #1 to #3.
Measured: a 4000 × 3000 photo split into three 4:5 slides gave 1332 × 1665 pixels each; a 6000 × 1500 panorama split into three square slides gave 1500 × 1500 each.
Drop a wide photo or design into the workspace. It is set to three portrait (4:5) slides.
Change the number of slides under Custom Grid (1 row, up to 20 columns) and pick Portrait 4:5 or Square 1:1 under Slide Shape.
Click Split into … Pieces. The preview shows the area that will be used and where each cut falls.
Download the ZIP, then create one Instagram post and select the slides in order, #1 first.
| Slides × shape | Combined shape | Good for |
|---|---|---|
| 2 × 4:5 | 1.6 : 1 | Landscape photos with two subjects |
| 3 × 4:5 | 2.4 : 1 | Most panoramas (default) |
| 3 × 1:1 | 3 : 1 | Wide panoramas, banners |
| 4 × 1:1 | 4 : 1 | Very wide phone panoramas |
| 5–10 × 4:5 | 4 : 1 to 8 : 1 | Long designed carousels |
Instagram displays every slide of a carousel in the same frame shape. If your slides differ even slightly, some are cropped or padded, and the seams no longer line up. That is why this tool does not just divide the image into thirds: it first crops the source to an exact overall shape, then cuts it into slides of whole pixels in exactly 4:5 or 1:1.
For example, three 4:5 slides together form a 2.4:1 image. From a 4000 × 3000 photo the tool keeps a centred 3996 × 1665 area and cuts it into three slides of 1332 × 1665, exactly 4:5. From a 6000 × 1500 panorama, three square slides are 1500 × 1500 each.
Match the slide count to how wide your image is:
Portrait 4:5 slides are the largest shape Instagram allows in the feed, so the carousel takes up more of the screen and the panorama appears bigger. The trade-off is that a 4:5 set needs more height, so very wide panoramas lose more of their sides. Square slides keep more of a wide panorama, at a slightly smaller size on screen. The preview shows exactly which area will be kept, so try both and compare.
Download the ZIP and unzip it on your phone or computer. In Instagram, start a new post, tap the multiple-selection icon and select the slides in order: #1 first. Do not use Instagram’s crop or zoom on the slides, since they already have the right shape. The posting guide in the workspace reminds you of the order.
Designing a carousel from scratch? Make a canvas whose width is the slide width times the number of slides (for example 3240 × 1350 for three 1080 × 1350 slides), place your design across it, then split it here.
A carousel is one post that people swipe through. A profile grid is several separate posts that form one big picture on your profile page, and those must be posted in reverse order. The same tool does both: choose a 3×3 or 3×2 grid preset with Slide Shape set to Original, and the numbering switches to reverse order for the grid. For carousels, keep a single row.
Slides are cut straight from your original pixels, so there is no extra loss beyond the format you choose: PNG (lossless), JPG or WebP. Instagram scales slides to 1080 pixels wide, so larger slides are fine. If your source is smaller than 1080 pixels per slide, Instagram upscales it, so start from the largest version of the photo you have.
The image is split and zipped in your browser; nothing is uploaded. There is no watermark, no account and no limit on how many carousels you create.
The magic of a seamless carousel is the moment when something continues from one slide into the next. Use it on purpose: let a road, a horizon or a line of text run across a cut so people want to swipe. At the same time, avoid placing faces, eyes or small text exactly on a cut line, because each slide is viewed on its own and a face split in half looks like a mistake. The preview shows the cut lines over your image before you split it, so you can check where they fall. If a cut lands badly, change the number of slides or switch between square and 4:5, which moves the cuts.
Show a full panorama at a large size in the feed.
Create swipeable product stories that flow across slides.
Present a wide room or property shot as a seamless tour.
Share a whole group photo without shrinking everyone.
Split one wide image into equal slides here, then upload all the slides in one post in order. Because the slides were cut from one image, the picture continues across them as people swipe.
Portrait 4:5 slides take up more of the screen in the feed, so the panorama looks bigger. Square slides keep more of the height of very wide panoramas. Both are exact in the download.
For every slide to have exactly the same shape, the whole set must have a fixed shape too (for example 2.4:1 for three 4:5 slides). The tool crops the centre of your photo to that shape. Choose more slides or square slides to keep more of a wide panorama.
Up to 20 across in one row, which matches the current Instagram carousel limit. Most seamless carousels use 2 to 5 slides.
Left to right: #1 first. Files in the ZIP are numbered in the same order, and the posting guide in the workspace shows the numbers on the preview.
Instagram resizes slides to 1080 pixels wide (1080 × 1350 for 4:5). Larger slides are fine; they are simply scaled down.
Yes. Choose a 3×3 or 3×2 grid preset and set Slide Shape to Original. In that mode the numbers show the reverse posting order needed for the profile grid.
No. The image is split on a canvas in your browser and the ZIP is created on your device.
PNG for the best quality, JPG for smaller files, or WebP. Instagram accepts JPG and PNG.
A carousel needs a wide source. For a single portrait photo, fit it into a square with Instagram No Crop or resize it to 4:5 with the Instagram resizer.