What Is an OG Image? The Complete Guide to Open Graph Images

You've probably seen them thousands of times — those rectangular preview cards that pop up when someone shares a link on Facebook, Twitter, LinkedIn, or Slack. That's an OG image. But what exactly is it, and why should you care?

OG Image = Open Graph Image

OG stands for Open Graph, a protocol created by Facebook in 2010. It defines how a webpage appears when shared on social media. The OG image is the visual component — the thumbnail card.

Technically, it's a <meta property="og:image"> tag in your page's HTML:

<meta property="og:title" content="Your Page Title">
<meta property="og:description" content="A short description">
<meta property="og:image" content="https://yoursite.com/og-image.png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">

Why OG Images Matter

• Higher click-through rate — Tweets with images get 150% more retweets. LinkedIn posts with images see 2x engagement.
• Brand consistency — Every share of your content carries your visual identity.
• Professional look — A missing or auto-generated OG image makes your site look unfinished.

The Correct OG Image Size

The universally recommended size is 1200 × 630 pixels. This works across:

Pro tip: 1200×630 covers all platforms. File size under 8MB, PNG or JPEG.

How to Create an OG Image (3 Ways)

1. Use our free generator — Type your title, pick a template, download instantly. No design skills needed.
2. Use Figma/Canva — Create a 1200×630 canvas manually. Time-consuming for multiple posts.
3. Hire a designer — Expensive and slow for blogs that publish regularly.

How to Test Your OG Image

Use our free OG image checker to preview how your image looks. For platform-specific debugging:

• Facebook Sharing Debugger
• Twitter Card Validator
• LinkedIn Post Inspector

Common Mistakes

• Image too small (under 200×200) — platforms ignore it
• Text too close to edges — gets cropped on mobile
• Wrong file format — use PNG or JPEG, not WebP
• Missing og:image:width and og:image:height — Facebook delays rendering
• Using the same image for every page — each article should have a unique image