Definition: A carousel post is a single post containing several images or videos that people swipe through, one slide at a time.
Also called: carousel, document post, swipe post
Updated October 10, 2026
Instagram and Facebook support image and video carousels. LinkedIn’s equivalent is the document post (an uploaded PDF shown as swipeable pages) or a multi-image post. TikTok has photo carousels. On X, up to four images appear as a grid rather than a swipe.
Slide one is the hook and has to stand alone in the feed. Put one idea per slide, keep text large enough to read on a phone, and end with a summary or a clear next step. Use the same aspect ratio on every slide; most platforms crop the whole carousel to the first slide’s shape.
| Platform | Max slides | Recommended size |
|---|---|---|
| 20 | 1080 × 1350 (4:5) | |
| 10 | 1080 × 1080 (1:1) | |
| LinkedIn (document) | 300 pages | 1080 × 1350 (4:5) |
| TikTok (photo) | 35 | 1080 × 1920 (9:16) |
A coffee shop posts a 7-slide Instagram carousel: “How to brew cold brew at home”. Slide 1 is the finished glass with the title, slides 2 to 6 are one step each, slide 7 lists the ratio to save.
Aspect ratio is the proportional relationship between an image or video’s width and height, written as width:height (for example 4:5 or 16:9).
Save rate is the percentage of people who saved (bookmarked) a post out of the people who saw it.
A safe zone is the part of an image or video frame that stays visible after the app overlays its buttons, captions and profile details.
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