Open Graph image tool
Open Graph Image Checker
Check whether an image is a practical fit for Open Graph previews, article cards and social sharing. Review dimensions, aspect ratio, file size, format and safe visual spacing before publishing.
Free browser tool
Open Graph Image Checker
Upload an image and compare it against a practical Open Graph preview target.
Drop your image here or choose a file
Supports JPG, PNG, WebP, static GIF and basic SVG. Recommended visual limit: up to 15 MB.
Privacy-first: your image is analyzed locally in your browser.
Optional accessibility check. PublishPixel does not invent visual descriptions.
Scores are estimated from common platform guidelines and practical publishing heuristics.
What makes a strong Open Graph image?
Open Graph images often appear as preview cards when someone shares a page on social platforms, messaging apps or content discovery tools. A strong preview image should be large enough to look sharp, light enough to load efficiently and composed so the important subject remains visible after cropping.
| Signal | Practical target | Why it matters |
|---|---|---|
| Dimensions | 1200 x 630 px | Common preview-card size |
| Ratio | 1.91:1 | Reduces unexpected cropping |
| Text | Large and centered | Small text becomes unreadable on mobile |
| File weight | As light as quality allows | Heavy previews can slow page delivery |
Open Graph image checklist
- Use a dedicated image instead of relying on a random page image.
- Keep important faces, products or text away from the edges.
- Compress the image without making text blurry.
- Use a descriptive filename.
- Add matching page title and description metadata.
- Test the final URL after publishing.
What size should an Open Graph image be?
A common practical target is 1200 x 630 pixels, close to a 1.91:1 ratio.
Does this guarantee every platform will crop the image the same way?
No. Preview rendering varies, so keep important content away from the edges and verify critical pages.
Should Open Graph images use JPG or PNG?
JPG is common for photos, while PNG is useful for graphics or transparency. File size and destination compatibility still matter.
Can I use the same image as my page hero?
Sometimes, but important pages often benefit from a dedicated Open Graph crop.