OG image size: Open Graph dimensions that work everywhere
One size works across every major platform: 1200×630 pixels, a 1.91:1 aspect ratio. Ship that and Facebook, X, LinkedIn, Slack and Discord all render a full-width card.
Per-platform specs
| Platform | Recommended | Notes |
|---|---|---|
| 1200 × 630 | Min 600×315, under 8MB | |
| X / Twitter | 1200 × 630 | summary_large_image card, under 5MB |
| 1200 × 627 | 1.91:1 ratio | |
| Discord / Slack | 1200 × 630 | Reads standard og:image |
| WhatsApp / iMessage | 1200 × 630 | Keep under ~600KB for fast previews |
Practical tips
- Keep text within the middle ~80% — some platforms crop edges on small screens.
- Use JPG or PNG; keep the file under 1MB so link previews load fast on mobile.
- Test with each platform's card validator or paste the link in a private chat to preview.
Tools used in this guide
Related guides
OG image size: Open Graph dimensions that work everywhere — FAQ
1200×630 pixels (1.91:1). That single size renders correctly on Facebook, X, LinkedIn, Slack, Discord and messaging apps.