Resize an image to 1200x630 for a link preview
You share a link and the preview card crops your image into a confusing sliver. That card reads an Open Graph image, and 1200x630 is the size every major platform expects. The tool is set to it below.
Drop images here or click to upload
PNG, JPG, WebP, GIF, AVIF, HEIC — up to 50MB each
- Files never leave your device
- Runs in your browser
- Free, no signup
The Open Graph card ratio
1200x630 is close to a 1.91:1 aspect ratio, the shape used by the og:image tag that Facebook, LinkedIn, Slack, and Discord read when they build a link preview. It is wide and short, like a billboard.
Using the exact size means the preview shows your full image instead of a center crop of a mismatched one. The resize tool is ready at 1200 by 630.
Keep text away from the edges
Different platforms trim Open Graph images slightly differently, and some overlay a title or favicon along the bottom. Keep headlines and logos inside the center, away from all four edges.
A safe margin of about 60 pixels on each side keeps your message readable no matter which platform renders the card. Treat the outer band as a bleed area.
Help the crawler load it fast
Social crawlers fetch your og:image when someone first shares a link, and a heavy file can time out and show no preview at all. To keep it snappy, convert it to WebP or compress the JPEG.
If you want the background on how browsers and platforms handle different image formats, the MDN guide on image file types is a solid reference.