What is the difference between summary and summary_large_image?

The summary card shows a small square thumbnail beside the text. summary_large_image shows a full-width image above the text, ideal for visual content. Use a roughly 1200 by 628 image for the large card.

Do I still need Open Graph tags?

X reads Twitter card tags first but falls back to Open Graph tags when they are missing. Adding both gives the most reliable preview across all platforms.

Is my data sent anywhere?

No. The card preview and tag generation happen entirely in your browser. Nothing you type is uploaded.

Twitter Card Preview

Preview your X (Twitter) card and generate the twitter meta tags.

Twitter (X) card preview

See how your link will appear when posted on X. This tool renders both card types — the compact summary card and the full-width summary_large_image card — and generates the twitter: meta tags to drop into your page’s <head>.

For the large image card, use a roughly 1200×628 (1.91:1) image. X falls back to your Open Graph tags if Twitter tags are missing. Everything runs locally in your browser.