Gearboxly

Free Social Media Preview

See how your link looks when shared.

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What is the Social Media Preview?

When someone shares your link, a preview card decides whether anyone clicks — the image, the headline, the description. Miss the Open Graph tags and your link shows up as a bare URL or a random cropped image, killing the click-through you worked for.

This social media preview tool fetches any URL and shows you exactly how it will look when shared on Facebook, LinkedIn and X, built from the page's real tags.

Last updated: Aug 13, 2026

What does this tool do?

You enter a URL and the tool fetches the page and reads its Open Graph and Twitter Card tags — image, title, description and site name.

It renders preview cards the way each platform would, and warns you when a key tag is missing so links don't fall back to something unflattering.

Key features

Live previews

See Facebook/LinkedIn and X cards side by side.

Real tags

Built from the page's actual OG and Twitter tags.

Missing-tag warnings

Flags absent image, title or description.

Image fallback

Shows clearly when no preview image is set.

Card type aware

Reflects summary vs large-image Twitter cards.

Example

Input
https://yoursite.com/article
Processing
The tool reads the page's Open Graph and Twitter Card tags.
Output
A Facebook/LinkedIn card and an X card — with a warning that og:image is missing.

Common use cases

  • MarketersCheck a campaign link previews well before sharing.
  • Content creatorsMake sure posts have an eye-catching card.
  • DevelopersVerify OG tags render after a template change.
  • Social media managersPreview links across platforms at once.
  • SEO specialistsConfirm social tags complement on-page SEO.
  • AgenciesQA client links before a launch.
  • PR teamsEnsure press links share cleanly.
  • Anyone sharing a linkSee it the way followers will.

Benefits

  • It shows the real card before you post, not after.
  • It catches a missing image that would flatten your card.
  • It previews multiple platforms in one place.
  • It helps you raise click-through with a strong card.

Tips

  • Set og:title, og:description and og:image on every shareable page.
  • Use an og:image around 1200×630 for the sharpest large card.
  • Add twitter:card as summary_large_image for a bigger X preview.
  • Keep social titles punchy — they're often truncated.
  • Use an absolute https URL for og:image.
  • After changing tags, re-scrape in each platform's sharing debugger to clear the cache.
  • Twitter falls back to Open Graph, so OG tags cover both.
  • Give each important page its own tailored image and copy.

Common mistakes to avoid

No og:image

Fix: Add an og:image (about 1200×630) so shares show a picture.

Relative image URL

Fix: Use an absolute https URL for og:image and twitter:image.

Expecting instant updates

Fix: Platforms cache tags — re-scrape in their debugger after changes.

Same generic card everywhere

Fix: Give key pages tailored titles, descriptions and images.

How it works

  1. 1

    Enter a URL

    The page you plan to share.

  2. 2

    Preview

    It reads your social tags and renders cards.

  3. 3

    Improve

    Fix missing images or titles before sharing.

Frequently asked questions

It reads the page's Open Graph and Twitter Card tags — image, title, description and site name — and renders how each platform would show them.

Platforms cache tags. After changing them, re-scrape the URL in each platform's sharing debugger to refresh the cache.

It reads the page's Open Graph and Twitter Card tags — image, title, description and site name — and renders how each platform would show them.

Platforms cache tags. Re-scrape the URL in each platform's sharing debugger (e.g. Facebook's) to refresh the cache.

Not always — X falls back to Open Graph. Add twitter:card for a large image and twitter-specific overrides if you want them.

About 1200×630 pixels works well for a large card across platforms.

Any publicly reachable HTML page. Pages behind a login or that block bots may not return tags.

No. The page is fetched only to read its social tags.

Conclusion

A social media preview tool lets you see and fix your share card before you post, so links look their best everywhere. Pair it with the meta tags analyzer to audit all your tags and the meta tag generator to create them.

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