What is the best OG image size that works on all platforms?

1200 x 630 pixels (1.91:1 aspect ratio) is the universal standard that works well on X, LinkedIn, Discord, Slack, WhatsApp, and Reddit. It's the recommended size by Facebook and widely adopted across all platforms.

What is the minimum OG image size for LinkedIn?

LinkedIn requires a minimum of 1200 x 627 pixels for link preview images. Smaller images will not display as a card preview.

What is the minimum OG image size for X/Twitter?

X requires a minimum of 800 x 418 pixels for summary_large_image cards. The recommended size is 1200 x 628 pixels.

Open Graph Image Size: The Complete 2026 Guide

Every platform has different image requirements. Here's the exact size you need for each one — and the one size that works everywhere.

Not sure if your OG image is the right size?

Check your Open Graph tags free with Proovd — paste a URL and see exactly how it looks on X, LinkedIn, Slack, Discord, WhatsApp, and Reddit.

Quick Answer

One size to rule them all: 1200 × 630 pixels (1.91:1 ratio)
LinkedIn requires 1200×627 minimum
X requires 800×418 minimum for large cards
Discord requires 300×300 minimum

The One Size That Works Everywhere

If you only set one OG image size, make it 1200 × 630 pixels. This is the Facebook-recommended standard and it works acceptably on every major platform. Here's why:

It exceeds every platform's minimum requirement
The 1.91:1 aspect ratio is the universal standard
Platforms that need slightly different ratios will crop, but the image stays recognizable
At 1200px wide, it looks crisp on Retina displays

Platform-by-Platform Image Requirements

Here are the exact image dimensions each platform requires for link preview cards:

Platform	Minimum Size	Recommended	Aspect Ratio
X / Twitter	800 × 418	1200 × 628	1.91:1
LinkedIn	1200 × 627	1200 × 627	1.91:1
Discord	300 × 300	1200 × 630	Any (1.91:1 best)
Slack	None (flexible)	1200 × 630	Any
WhatsApp	300 × 157	1200 × 630	1.91:1
Reddit	120 × 120	1200 × 628	1.91:1

Platform Deep Dive

X / Twitter

X uses twitter:card tags (not just OG tags). For summary_large_image cards, the minimum is 800×418. The recommended size is 1200×628. X will display smaller images but they look pixelated on modern displays.

<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:image" content="https://yoursite.com/image-1200x628.jpg" />

LinkedIn is the strictest about image size. It requires a minimum of 1200×627 pixels. Images smaller than this will not display as a card — you'll just get a plain URL. LinkedIn also validates the MIME type strictly.

Discord

Discord is the most lenient. It accepts images as small as 300×300 pixels. However, larger images look better and Discord will scale 1200×630 images without quality loss.

Slack

Slack doesn't enforce minimum dimensions. It will display any image, but the card layout looks best with a 1.91:1 ratio (like 1200×630). Slack also supports animated GIFs as link previews.

WhatsApp requires a minimum of 300×157 pixels (roughly 2:1 ratio). The recommended size is 1200×630. WhatsApp displays the preview inside chat bubbles, so the image needs to be narrow enough to fit mobile screens.

Reddit's link post preview works best at 1200×628. Reddit is relatively forgiving with smaller images, but they get cropped awkwardly. Reddit also has a separate self-post image system that doesn't use OG tags.

File Format and Size Tips

Beyond dimensions, these factors affect how your OG image is rendered:

Format: JPG or PNG are universally supported. WebP is widely supported but some older platforms may not recognize it.
File size: Keep under 5MB. LinkedIn's limit is 5MB, X's is 5MB. WhatsApp is more flexible.
Text in images: Keep text minimal and centered. Different platforms crop differently — center your important content.
Safe zone: The center 800×420 area is safe across all platforms. Keep critical content in this zone.

Quick Fix Checklist

Set OG image to 1200 × 630 pixels (1.91:1 ratio)
Use JPG or PNG format for maximum compatibility
Keep file size under 5MB
Set og:image:width and og:image:height meta tags
Set twitter:image tag separately from og:image
Test with Proovd to verify on all platforms

Frequently Asked Questions

Can I use different image sizes for different platforms?

Technically yes, but it's not practical. OG tags are set once per page, and all platforms read the same tags. Use one size that works for all platforms (1200×630).

Does the OG image need to be square?

No. Square images (1:1 ratio) work on some platforms like Instagram, but for link previews on X, LinkedIn, Discord, etc., the 1.91:1 ratio (1200×630) is the standard.

Should I include text in my OG image?

Yes, but keep it minimal and centered. Platforms crop images differently, so text at the edges may get cut off. Keep critical text in the center 800×420 area.

Verify your OG image size across all platforms

Check your Open Graph tags free with Proovd — paste a URL and see the preview on X, LinkedIn, Slack, Discord, WhatsApp, and Reddit.