About OG Cover

Why this exists

A link with no Open Graph image unfurls as a line of grey text. A link with one takes several times the space in a feed and gets read. Everyone knows this, and almost nobody wants to open a design tool, find the right canvas size, and lay out a headline every time they publish a post.

Most of the alternatives want an account before they will show you anything, put a watermark on the result, or hide the useful sizes behind a subscription. OG Cover was built to skip all of that: open the page, type a headline, download a PNG. The whole job should take a minute.

Who makes it

OG Cover is built and run by Rawand, an independent developer. It is not a company with a support department: mail goes to a person, and the answer comes back from the same person. Full operator details are on the legal notice, and every address is on the contact page.

How it works

A card is not a screenshot and not a canvas of draggable boxes. It is a set of options: a layout, a theme, a surface treatment, a headline. Those options are compiled into a template and rendered on the server by Satori and resvg, which turn the description into an SVG and then into a PNG in roughly 60 milliseconds.

That design is why there are 30 layouts, 24 themes and 13 treatments rather than three templates: combinations are cheap when a card is data. It is also why every example on this site, every blog cover included, is a live render rather than a screenshot. Nothing here is a mockup of the product.

What we do not do

• No account, no sign-up, no email address collected.
• No watermark on anything you export.
• Your images are never stored. They are rendered on request and streamed straight back.
• Uploads are never written to disk.
• No analytics trackers and no first-party cookies.

How it is paid for

Rendering images costs processor time and bandwidth, and the tool is free with no paid tier. Advertising is meant to cover that, though none runs here yet. When it does it will be served by Google AdSense and labelled by the network; what that means for your data is set out in the privacy policy.

Nothing in the blog here is sponsored. No article is paid placement and no product is recommended in exchange for money. If that ever changes it will be disclosed on the article itself, not in a footnote.

What we write about

The blog covers the part the tool cannot do for you: which size each platform wants, which meta tags to put on the page, why a preview is showing last week’s picture, and what makes a card readable at thumbnail size. It is written from the problems that come up building a renderer, so the numbers in it are ones we had to get right ourselves.