You know that moment. Someone shares a link in your WhatsApp group and it looks stunning — a big colourful preview, a bold headline, branding you can read at a glance. Then you share a link to your own blog, your online store, or your portfolio… and it shows up as a sad grey box with just the URL. Nobody taps it. The difference between those two links is not luck or followers. It is one small thing most website owners have never heard of: the OG image.
Try it free → OG Image Generator
OG stands for "Open Graph" — a system Facebook introduced in 2010 so websites could control how their links appear when shared. An OG image is simply the preview picture that shows up when someone shares your link on WhatsApp, Facebook, LinkedIn, X (Twitter), Telegram, or Slack.
Think of it as the thumbnail of your web page. YouTube creators spend hours perfecting video thumbnails because a good thumbnail gets the click. Your OG image does exactly the same job for your links. It is often the very first impression a stranger gets of your website — before they read a single word of your content.
Technically, it is set through one line of code on your page (the og:image meta tag), but you never need to touch code yourself. A generator creates the image, and most website platforms — WordPress, Blogger, Wix, Shopify — let you upload it in a simple settings field.
When your page has no OG image, apps have nothing to display, so they fall back to a generic grey box with your page title and URL. In a chat full of colourful previews, your link is practically invisible. People scroll past it the same way they scroll past things they never notice.
This matters for anyone who depends on shared links: freelancers sending portfolio links to clients, students sharing project work, small shops sharing product pages on WhatsApp, bloggers sharing new posts on Facebook. A proper OG image makes your link look trustworthy and professional before anyone even opens it.
It is also free branding. Every time someone shares your link — a happy customer, a friend, a client — your logo and colours travel with it. A missing OG image wastes that free advertising completely.
One correctly sized image covers almost all of them at once.
A good OG image takes five minutes to make and keeps working for years — every share of your link carries it along for free.
OG images are one part of a bigger habit: making everything you publish online look professional. If you enjoy designing shareable visuals, the free infographic maker guide shows how to turn data into visuals people actually share. For a complete professional image, pair your link previews with a professional email signature. And if you are building a new website before promoting it, start by sketching a quick wireframe — it saves hours of rework later.
No. Your logo is your brand mark; an OG image is a 1200 × 630 banner that appears in link previews. It usually contains your logo plus a headline and your site name — the logo is just one ingredient.
Ideally, yes. Each important page — your homepage, key product pages, top blog posts — deserves its own OG image with its own headline. For smaller sites, one good branded OG image for the whole site is a fine place to start.
Yes. The OG Image Generator is free to use with no signup. You create the image in your browser and download it — the image is yours to use on your website and social media.
Two common reasons. First, apps cache link previews — WhatsApp and Facebook may keep showing the old preview for hours. Sharing a slightly modified URL (adding ?v=2 at the end) forces a fresh preview. Second, check that the image is publicly accessible and at least 1200 × 630 pixels in size.
You share links every day — in client chats, on social media, in groups. Each one is a tiny advertisement for you. An OG image takes five minutes to create, costs nothing, and turns every share into a professional-looking preview that people actually tap.
Try it free → OG Image Generator
Open the tool, add your headline and brand, and download your first OG image today. Your next shared link will look like it belongs to someone who means business — because it will.