Carousel Dimensions for Every Platform (2026 Cheat Sheet)

Every platform has its own canvas, and uploading the wrong size means cropped headlines or ugly letterboxing. Here are the exact carousel dimensions for Instagram, TikTok and LinkedIn in 2026, plus the rules that hold true no matter where you post.

Instagram carousel dimensions

Instagram supports three ratios, but one wins. According to Buffer, the options are 1080x1350 (4:5 portrait), 1080x1080 (1:1 square) and 1080x566 (1.91:1 landscape). The portrait 4:5 is the recommended size because it claims the most vertical real estate in the feed.

A single carousel can hold up to 20 images, raised from 10 in 2024 per Metricool. One important constraint: every slide in the deck shares the same ratio, so pick your shape on slide one and stick with it. For a deeper breakdown, see our Instagram carousel size guide.

TikTok carousel dimensions

TikTok photo carousels (slideshows) live in full-screen vertical, so the size is 1080x1920 (9:16 portrait). Per WaveGen, you can add up to 35 photos, but that is a ceiling, not a target. Most strong slideshows land at 5 to 10 images, enough to tell a story without losing people mid-swipe.

Because TikTok fills the entire screen, keep your key text well clear of the edges where the caption, profile and action buttons sit. More on counts in our TikTok carousel length guide.

LinkedIn carousel dimensions

LinkedIn carousels are different in kind: they are document posts uploaded as a PDF, not a set of separate images. Per Oktopost, you design pages at 1080x1350 (4:5) or 1080x1080 (1:1), then export the whole deck as a single PDF.

The format is generous on size: a document can be up to 100 MB and 300 pages, though a real carousel should be a fraction of that. For layout and font tips that survive the PDF render, read our LinkedIn carousel size guide.

Rules that apply everywhere

The pixel specs change, but the design discipline does not. A few principles carry across all three platforms:

Portrait wins feed space

Vertical formats fill more of the screen, so people see them longer. Default to portrait unless you have a strong reason not to.

Keep text in the safe zone

Pad your edges. Captions, usernames and buttons sit on top of your slides, especially on TikTok, so important words live in the middle.

One ratio per deck

Mixing square and portrait slides in a single carousel looks broken. Lock one shape and apply it to every slide.

Design for mobile

Almost nobody reads carousels on a desktop. If a headline is legible at thumb size on a phone, it works.

Supaslides exports each platform at its native size automatically: 1080x1350 for Instagram and LinkedIn, 1080x1920 for TikTok, and LinkedIn as a PDF document. Write the deck once, ship it correctly sized everywhere.