OG Image Size (Open Graph)
The Open Graph image is the picture that shows when your page is shared on Facebook, LinkedIn, Slack, Discord and iMessage. Set it with the og:image meta tag at 1200×630 px (1.91:1) — this is the size every major platform renders cleanly. Go below 600×315 and Facebook falls back to a tiny square thumbnail.
| Placement | Pixels | Ratio | |
|---|---|---|---|
| Recommended og:image Facebook, LinkedIn, Slack, Discord, iMessage link previews |
1200×630 | 1.91:1 | |
| Minimum Below this Facebook shows a small thumbnail, not a large card |
600×315 | 1.91:1 | |
| Square fallback Safe if a platform crops to square (WhatsApp sometimes does) |
1200×1200 | 1:1 | |
| File limit og:image max; use JPG/PNG, keep under 1 MB for fast unfurling |
≤8 MB | — |
Recommended: 1200×630 px
Add <meta property="og:image" content="..."> pointing to an image at 1200×630 pixels (1.91:1). This ratio matches the large link card Facebook and LinkedIn draw, so nothing gets cropped. Keep any text roughly centred — some clients trim a few pixels off each edge.
Don't go below 600×315
Facebook only renders the big card when the image is at least 600×315. Smaller than that and it degrades to a small square thumbnail beside the text. Always set explicit og:image:width and og:image:height so the first scrape shows the card immediately.
Use an absolute HTTPS URL
The og:image must be an absolute https:// URL, not a relative path, or crawlers can't fetch it. Host it on the same domain and keep the file under ~1 MB so the preview unfurls fast.
FAQ
What is the best OG image size in 2026?
1200×630 pixels at a 1.91:1 ratio. This renders as a full-width link card on Facebook, LinkedIn, Slack and Discord.
What is the minimum OG image size?
600×315 pixels. Below this, Facebook shows a small square thumbnail instead of the large preview card.
What is the maximum OG image file size?
Up to 8 MB is allowed, but keep it under ~1 MB so the link preview loads quickly.