Don's Tools · SEO & Marketing · Social Card Preview

Social card preview

See how your link looks on X, Facebook and LinkedIn before you share it, right in your browser.

Platform
Note: the preview is built in your browser; the only thing fetched is the image URL you enter, so you can see how it crops. Real platforms cache previews, so use their own debuggers for a final check.
Social Card Preview is a free SEO tool that shows how a link will appear when shared on X, Facebook and LinkedIn, rendered in your browser from the title, description, URL and image you enter. It generates the matching Open Graph and Twitter card tags to copy, and the only thing fetched is the image you point it at, so nothing else is sent.

Files are processed in your browser and never uploaded.

How to use Social card preview

  1. Add your text

    Type or paste your text into the input box. Everything is handled by your own browser, so nothing is sent to a server.

  2. Set the options

    Choose Title, Page URL and Image URL (1200X630). The options are visible from the start, not hidden until you paste something.

  3. Read it and keep a copy

    The output updates as you type, so there is nothing to submit and nothing to wait for. Copy tags, Don puts the result on your clipboard.

What this tool does

Previews for X, Facebook and LinkedIn

The same link is previewed as X, Facebook and LinkedIn each render it, because all three crop and truncate differently.

Live image, title and description

Title, description and image update live as you type, so you can see where a title gets cut off before you publish.

Generates matching OG and Twitter tags

The matching Open Graph and Twitter card tags are generated alongside the preview, ready to copy into your head section.

1200x630 guidance

The recommended image is 1200x630, and the preview shows what happens when yours is a different shape.

Works in your browser, no sign-up

Everything runs in your browser, so an unpublished page's title and description are never uploaded.

Frequently asked questions

Is my data uploaded anywhere?

No. The previews are drawn in your browser from what you type. The only thing fetched is the image at the URL you provide, so you can see how it will be cropped. Nothing else is sent.

Why might the real preview differ?

Social platforms cache previews and may apply slightly different cropping or fonts. This tool shows a close approximation; for a final check use each platform's own debugger to refresh the cache.

What image size works best?

A 1200 by 630 pixel image (1.91 to 1) looks right on X, Facebook, LinkedIn, Slack and Discord. Keep important text and faces near the centre so nothing important is cropped.

Do I need both Open Graph and Twitter tags?

Open Graph tags cover most platforms, and X uses them as a fallback. Adding twitter:card set to large image ensures X shows the big image rather than a small thumbnail, so the generated snippet includes it.

Can I copy the tags?

Yes. The matching Open Graph and Twitter tags are generated below the preview, ready to paste into your page's head.

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