OG Image Size: 1200×630 Explained

The standard Open Graph image size is 1200×630 pixels (a 1.91:1 aspect ratio). It is the size Facebook, X, LinkedIn, WhatsApp, Slack, and Discord recommend and render correctly, so building every og:image at 1200×630 is the safe default for social sharing.

Why 1200×630?

Social platforms crop and scale the shared preview. 1200×630 is wide enough to stay sharp on high-density screens while keeping the ratio (1.91:1) that all major platforms render without cropping the headline or branding. Smaller images get upscaled and look blurry; larger ones are downscaled or rejected.

The rules to follow

Property	Recommended
Width	1200 px
Height	630 px
Aspect ratio	1.91:1
Max file size	Under 5 MB (8 MB is the hard cap)
Format	PNG (crisp text) or JPG (photos)

Where the safe area is

Platforms sometimes crop the top and bottom or a vertical strip. Keep headline text and your logo inside the middle ~50% of the card so important content survives most crops.

How FastOG handles size

FastOG renders every template at exactly 1200×630, so you never have to think about size or ratio — the output is ready for og:image and twitter:image out of the box.

html

<meta property="og:image" content="https://fastog.com/api/v1/og?template=default&title=My+Post&key=sk_...&s=...">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">

FAQ

Is 1200×630 still the right size in 2025?

Yes. It remains the widely recommended default across Facebook, X, LinkedIn, WhatsApp, Slack, and Discord.

What if I use a different size?

It usually still works but may be cropped or blurred. If you must deviate, keep the 1.91:1 ratio and stay under 5 MB.

Does FastOG let me set a custom size?

FastOG renders 1200×630 as the standard. For most sharing needs this is exactly what the platforms expect.

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