Use case

Twitter / X card image generator

Large image cards use the same 1200×630 canvas as Open Graph. Generate a PNG once, then set both og:image and twitter:image.

<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:image" content="https://yoursite.com/og/post.png" />
<meta property="og:image" content="https://yoursite.com/og/post.png" />

Design in the free generator, or automate with the OG image API.