Bookmark this one. The details and caveats are in the platform articles above.
| Platform / format | Ratio | Pixels | Max length / count |
|---|---|---|---|
| Instagram feed photo | 4:5 or 3:4 (1:1 and 1.91:1 also allowed) | 1080 × 1350 / 1080 × 1440 | Caption 2,200 characters, 5 hashtags* |
| Instagram carousel | Same as feed, one ratio for all slides | 1080 × 1350 / 1080 × 1440 | 20 in the app (10 through schedulers) |
| Instagram Reels | 9:16 | 1080 × 1920 | 3 minutes recorded; up to 15 minutes via API* |
| Instagram Stories | 9:16 | 1080 × 1920 | 60 seconds per Story |
| Instagram grid thumbnail | 3:4 | 1080 × 1440 area | n/a |
| TikTok video | 9:16 | 1080 × 1920 | 10 minutes recorded*, 60 minutes uploaded*, 10 minutes via API |
| TikTok Photo Mode | 9:16 | 1080 × 1920 | 35 photos |
| YouTube Shorts | 9:16 or 1:1 | 1080 × 1920 | 3 minutes |
| YouTube long-form | 16:9 | 1920 × 1080 or 3840 × 2160 | n/a |
| Pinterest image Pin | 2:3 | 1000 × 1500 | Title 100, description 800 characters |
| Pinterest video Pin | 9:16 | 1080 × 1920 | 4 seconds to 5 minutes |
| LinkedIn image | 4:5 or 1:1 | 1080 × 1350 / 1080 × 1080 | Up to 20 images |
| LinkedIn document | 4:5 or 1:1 | 1080 × 1350 / 1080 × 1080 | 100 MB |
| LinkedIn video | 4:5, 1:1, 9:16 or 16:9 | 1080 × 1350 … 1920 × 1080 | 15 minutes from desktop* |
* = check in-app (see the platform article).
The one-file workflow: Shoot vertical at 1080 × 1920. Keep the important action inside the middle 1080 × 1350 (4:5) area and away from the bottom third. One edit then works for Reels, TikTok, Shorts and Pinterest. Crop it to 4:5 for the Instagram feed and LinkedIn.