Why does OG image size keep cropping your card?

You designed a beautiful share graphic. LinkedIn chopped the logo. Facebook letterboxed it. WhatsApp showed a postage stamp. That is almost never “the platform is broken.” It is OG image size.

The safe frame in 2026 is still 1200×630 pixels, aspect 1.91:1. Facebook documented it years ago; LinkedIn, Slack, Discord, and most large-image cards still crop toward that rectangle.

Smaller than 200×200 and many scrapers drop the file. Smaller than 1200×630 and you often get a thumbnail instead of a full-width card. Larger is fine if you keep the ratio and the bytes down.

Platform notes

• Facebook / LinkedIn / Slack / Discord: 1200×630, JPEG or PNG, under 8 MB (Facebook’s hard cap). Stay under 1 MB when you can.
• X (summary_large_image): 1200×630 works. OGForge also has an x preset at 1600×900 if you only care about X. For a site-wide og:image, stay on 1200×630.
• WhatsApp: same 1.91:1, but the app is picky about file size. Prefer under 1 MB. See WhatsApp link preview.
• Square posts are a different product. Use 1200×1200 only when you control a square surface, not as your og:image.

Put width and height in the HTML so the first share is not a layout jump:

<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">

The OG image checker flags missing dimension tags, tiny images, and a ratio that is not ~1.91:1.

Format

PNG for graphics and type. JPEG for photographs. WebP is smaller and widely supported, but a few older crawlers are happier with PNG or JPEG.

OGForge can emit all three from the same render URL (fmt=png|jpeg|webp). PNG export in the editor is free. JPEG and WebP are on Pro.

Do not design to the crop

Keep headlines and logos inside a safe center. LinkedIn in particular will clip edges. If your title sits in the last 40 pixels of the canvas, someone will screenshot a mutilated card and blame the CMS.

Generate a 1200×630 file in the OG image generator, save it, and point og:image at the /u/… URL. Then paste the page (not just the PNG) into the OG image checker.