The Perfect og:image Size: Exact Dimensions for Every Platform (2026)
The Short Answer: 1200 × 630 Pixels
If you only remember one number, make it 1200 × 630 pixels (a 1.91:1 aspect ratio). This single size renders correctly on Facebook, X large cards, LinkedIn, WhatsApp, Slack, and Discord. Keep the file under 1 MB and use JPG, PNG, or WebP.
Everything below is the detail behind that recommendation.
Platform-by-Platform Specifications
- Recommended: 1200 × 630 px (1.91:1)
- Minimum: 200 × 200 px (below this the image is rejected)
- File size limit: 8 MB (but stay under 1 MB for fast scraping)
- Images smaller than 600 × 315 px display as a small square thumbnail instead of a full-width card.
X (Twitter)
- summary_large_image card: 1200 × 628 px (1.91:1), minimum 300 × 157
- summary card (small square): 1200 × 1200 px (1:1)
- File size limit: 5 MB
- Set the card type with the twitter:card meta tag — without it, X may show a small card even with a perfect image.
- Recommended: 1200 × 627 px (1.91:1)
- Minimum: 200 × 200 px
- LinkedIn crops aggressively to 1.91:1 — keep critical content (logos, faces, text) centered.
- Works best: 1200 × 630 px, file under 600 KB
- WhatsApp is the strictest about file size; heavy images are silently dropped and your link shows with no preview at all.
Slack & Discord
- Both follow standard OG tags and handle 1200 × 630 px perfectly.
- Discord additionally supports large images up to 4096 px wide for rich embeds.
Design Rules That Matter More Than Pixels
- Put nothing important in the outer 10%. Every platform crops slightly differently.
- Use large text only. Your image is often viewed at ~500 px wide on mobile feeds; small text becomes unreadable.
- High contrast wins. Feeds are visually noisy — bold backgrounds and few elements outperform busy screenshots.
- Brand consistently. Put your logo in the same corner on every og:image so repeat viewers recognize your links.
Keep the File Small Without Looking Bad
A 1200 × 630 image does not need to be heavy:
- Export as JPG at ~80% quality for photos (usually 80–150 KB).
- Use PNG only for flat graphics with sharp text.
- WebP gives the best size-to-quality ratio and is supported by all major platforms.
Need to convert or shrink an image? Our free Image Converter converts between PNG, JPG, and WebP entirely in your browser — no upload, no quality surprises.
Always Preview Before Publishing
Dimensions on paper and rendering in practice are different things — LinkedIn's crop, X's card type, and WhatsApp's size limit all change what users actually see. Drop your URL and image into the Open Graph Checker to preview your card on every platform at once, and fix issues before your audience sees them.