Share image maker
The picture that shows up when somebody posts your link. Make one that looks chosen, instead of whatever the internet grabbed.
- It all happens here
- Every part runs in your browser. Nothing you type is uploaded, and it works with the internet off.
- No account, ever
- No sign-up, no email address, no trial that turns into a bill.
- Yours to use
- Nothing watermarked, nothing limited to a preview.
What it says
Keep it to a phrase. This is a headline, not a sentence.
Five or six words. It sizes itself to fill the card, so a shorter one comes out bigger — which is usually better.
Sits in the corner in your accent colour, like a signature.
How it looks
Everything ranged left, with a colour bar down the side. Reads like a headline.
The text colour is worked out from your background rather than chosen — a pale card gets dark text, a dark card gets light. That is why it stays readable whatever you pick.
Your logo (optional)
Your card
1200 × 630 — the shape nearly every messaging app and social network crops to.
Where it goes
Upload the image to your site, then point at it from the <head> of the page.
<meta property="og:image" content="https://yoursite.example/share-image.png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta name="twitter:card" content="summary_large_image">Still showing the old one?The platform cached it, sometimes for days. Search for the platform’s name plus “sharing debugger” — it re-reads your page on demand.
In a feed
yoursite.example
Your headline here
Roughly this size on a phone, which is the size to judge it at — not the large version above.
What this is, if you have never had to think about it
Most people arrive here having been told they need one of these, without being told what it is. Nothing below assumes you already know.
The picture you did not choose
Paste a link into a message, a post or a group chat and something appears: a picture, a headline, a line of description. If you never specified one, the app guesses — and it usually grabs the first image on the page, which is often your logo, a stock photo of a handshake, or nothing at all. The share image is the one you choose on purpose.
Why 1200 by 630
It is the size nearly every messaging app and social network crops to, so an image at those proportions appears whole rather than with its edges chopped off. Anything important — words especially — should sit well inside the middle, because a few apps still crop tighter than they promise. Assume the outer tenth might vanish.
Put the words in the picture
The counter-intuitive part: a share card works better with text on it than without. In a feed the image is the thing the eye lands on, and the headline underneath is small grey text that half of people never read. A card with four or five large words on it does the whole job of the link on its own. Keep it to a phrase, not a sentence.
Questions people ask

A good cover in front of something worth opening.
Content is where the thing behind the link lives — articles, pages and pictures you write once and use in several places, with the fiddly search bits filled in as you publish rather than afterwards.
