Boneyard Tools

Open Graph and Twitter Card Preview

Paste your Open Graph and Twitter Card values to see how a link renders when shared and catch missing images, relative URLs and titles that run too long before you publish.

How to preview Open Graph tags

  1. Enter your og:title, og:description, og:image and og:url.
  2. Review the warnings for anything missing or too long.
  3. Check the live card preview, then fix and republish your tags.

Examples

A healthy set of tags

title: Open Graph Preview Tool | image: https://example.com/cover.png | url: https://example.com
No warnings. Renders as a large image card.

Missing image

title: My Post | description: A short summary | url: https://example.com
Error: missing og:image, the link shows as a small text only card.

Frequently asked questions

What is Open Graph?

Open Graph is a set of meta tags, like og:title and og:image, that tells social platforms how to display your link when it is shared.

Why does my image need to be an absolute URL?

Platforms fetch the image from outside your site, so a relative path like /cover.png cannot be resolved. Always use a full https URL.

What is the difference between summary and summary_large_image?

The summary card shows a small thumbnail beside the text. The summary_large_image card shows a full width image above the text and needs an og:image.

How long should my title and description be?

Aim for a title of 60 characters or fewer and a description of about 155 characters so neither is truncated in the preview card.

Is my data private?

Yes. The analysis runs entirely in your browser and nothing you paste is uploaded.

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