Facebook post size
The Open Graph image. Also what X and LinkedIn use.
Cropped in your browser · your image is never uploaded
A shared link uses 1200 × 630. The Open Graph image. A photo you upload directly is better at 1080 × 1350, the same portrait ratio Instagram prefers, because it takes more vertical space in the feed.
How to use the facebook post size
These are two different mechanisms and it is worth not confusing them. When you paste a link, Facebook fetches the page’s Open Graph image and shows it at roughly 1.91:1. You control that by setting og:image on the page, not by uploading anything. When you upload a photo directly, you control the shape, and portrait works harder. The other thing to know is that Facebook caches Open Graph data aggressively, so changing a page’s image does not change the preview until the cache is refreshed through their Sharing Debugger.
What people use it for
- Exporting a link card image that is not cropped in the feed
- Choosing between a link preview and an uploaded photo
- Checking a portrait photo will not be cut on mobile
Questions
1200 × 630 for a link preview, 1080 × 1350 for a photo you upload directly.
Facebook caches Open Graph data. Run the URL through their Sharing Debugger to force a refresh.
Yes. It comes from the page’s og:image tag, not from anything you upload to Facebook.
Portrait at 1080 × 1350. It occupies more of the screen as someone scrolls.
Yes, always. Uploading at the recommended size rather than much larger gives a better result.