How to use it
Choose the pictures for your post; you can pick up to 20 at once and add more later. Pick a shape for the whole post, because every slide in a carousel has the same shape as the first one. Tap a slide in the row to crop it: drag to move it, and pinch, scroll or use the slider to zoom. Use Move to change the order. The preview on the right swipes like the real thing, with the slide counter and dots, in light or dark mode, and the grid tile shows what your profile will show.
When it looks right, Download all as a ZIP saves every slide as a numbered JPG at full size (1080 pixels wide), ready to post in order. On a phone you can save single slides with Save this slide instead.
Which shape should I use?
Portrait 4:5 (1080 × 1350) takes up the most room in the feed and is the usual pick. Tall 3:4 (1080 × 1440) matches the profile grid’s tile shape. Square 1:1 (1080 × 1080) is the classic look, and Landscape 1.91:1 (1080 × 566) suits wide shots but looks small on phones. For one wide panorama that flows across slides, use the Panorama Splitter.
Questions
Are my photos uploaded? No. They are opened, cropped and saved inside your browser. Why JPG? Photo apps re-compress uploads anyway, and JPG keeps the ZIP small. Is this an official tool? No, it isn’t made by or connected to Instagram or Meta; it only copies the layout so you can check your post.