OG Image Size Guide: Create Perfect Social Share Images
Learn the correct OG image sizes and how to create optimized social share images.
The Open Graph protocol is what makes your blog post show a preview card when it is shared to Facebook, X, LinkedIn, Slack, Discord, and almost every other link-unfurling service. A missing or mis-sized OG image is the single most common reason a link looks broken on social platforms. The universal safe choice is 1200×630 (1.91:1) — export one image at that size in ShareMint, drop it into your site's og:image meta tag, and every major platform will render a clean preview.
| Platform | Size (px) | Ratio |
|---|---|---|
| Universal OG (FB / LinkedIn / Slack) | 1200 × 630 | 1.91:1 |
| X summary_large_image | 1200 × 628 | 1.91:1 |
| X summary | 1200 × 1200 | 1:1 |
| note header | 1280 × 670 | ~1.91:1 |
Steps
Understand OG image requirements
The standard OG image size is 1200x630px (1.91:1 ratio). This works for Facebook, X (Twitter), LinkedIn, and most platforms.
Upload your image to ShareMint
Open ShareMint and upload the image you want to use as your OG image.
Select the Facebook Post preset
Choose the Facebook Post preset (1200x630) which matches the standard OG image dimensions.
Adjust and export
Set the focal point, adjust quality settings, then download. Add the image to your website's meta tags.
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Create OG ImageFAQ
What is the best OG image size?
1200x630 pixels (1.91:1 aspect ratio) is the universal standard. It works well on Facebook, X (Twitter), LinkedIn, Slack, and other platforms.
Do I need different OG images for each platform?
The 1200x630 size works on most platforms. However, X (Twitter) also supports 1:1 (summary) and 2:1 (summary_large_image) cards.
What format should OG images be?
JPEG or PNG. Keep file size under 5MB for fast loading. JPEG is recommended for photographs, PNG for graphics with text.