Social Card Preview
Paste a URL to see exactly how the link will look on X, Facebook, LinkedIn, and Slack — and get a tag-by-tag check of the Open Graph and Twitter Card meta tags behind it. No login, no signup.
The official validators are gone
X removed the preview from its Card Validator in 2022. Facebook's Sharing Debugger now sits behind a Facebook login. LinkedIn's Post Inspector only covers LinkedIn. So most people find out their link preview is broken the moment they share it — in front of their audience.
This checker fetches your page the same way the crawlers do and shows all four platforms side by side, before you hit publish.
Faithful previews
Card mockups for each platform, including X's summary vs summary_large_image formats and Slack's unfurl layout.
Tag-by-tag lint
Missing og:image, wrong image size, absent twitter:card, truncated titles — every issue listed with the fix.
Fix it on the spot
No social image? Generate a 1200×630 Open Graph image with our free generator, or automate one per page via the API.
Never ship a broken card again
Checking is manual. Generating is not: design one Open Graph template, then create the image for every page you publish with a single API call.
curl -X POST https://api.templatefox.com/v1/image/create \
-H "x-api-key: sk_your_api_key" \
-H "Content-Type: application/json" \
-d '{
"template_id": "your-og-template-id",
"modifications": [
{ "name": "title", "text": "How to price a SaaS" },
{ "name": "site_url", "text": "yourdomain.com" }
]
}'{
"url": "https://cdn.templatefox.com/…/og.png",
"filename": "og.png",
"credits_remaining": 59,
"expires_in": 86400
}