OG Preview

OG Preview is a free online tool that shows how your link will look when shared on X, Slack, and iMessage — before you post it. Type a URL, title, and description, pick an image, and see each platform's link card update live, with character-count guidance and a copyable set of meta tags.

Previews are rendered from the values you type — this page never fetches the URL, so real cards may differ slightly (platforms cache images and sometimes rewrite titles).

Your link

URL

Title — shown on every card

Description — shown under the title

Site name — optional, defaults to the URL's hostname

Card image

No image

Upload image…

That file doesn't look like an image — try a PNG or JPG.

Try a preset:

X (Twitter) — large summary card

Slack — link unfurl

iMessage — rich link

Meta tags

Generated from the fields above — paste into your page's <head>.

The og:image value points at /og-image.png on your site's domain. If you uploaded an image here, host that file first, then replace the URL with its real address.