DevDockTools

Open Graph Preview

Enter a URL or manually input Open Graph data to preview how your page will appear when shared on Facebook, Twitter/X, LinkedIn, and other platforms.

Open Graph (OG) tags control the title, description, and image that appear when your page is shared on social media. Testing them before publishing prevents broken share cards — a missing og:image or incorrect og:title that you only discover after going live.

Checking og:image before social media launchAuditing existing pages for missing OG tagsPreviewing Twitter Card vs Facebook card differencesVerifying LinkedIn article share appearance
100% private — all processing runs in your browser. No files are uploaded to any server.

Open Graph Data

21/70 chars

94/200 chars

1200×630px recommended

No image provided

example.com

My Amazing Page Title

A short description of this page that will appear in social media previews and search results.

Frequently Asked Questions

Can I preview any URL?

You can manually enter OG data for any page, or use the URL fetch mode to load OG data from any publicly accessible URL.

What is the ideal og:image size?

Facebook recommends 1200×630 pixels at a minimum. Twitter Card requires at least 300×157. Using 1200×630 covers both platforms with a single image.

Why does my share image look different on each platform?

Facebook, Twitter, and LinkedIn crop images differently and have different aspect ratio preferences. Facebook/LinkedIn prefer 1.91:1 (1200×630). Twitter summary_large_image uses the same ratio. Check each preview individually.

How often do social platforms refresh cached OG data?

Facebook caches OG data aggressively. Use the Facebook Sharing Debugger to force a cache refresh after you update your og: tags. LinkedIn and Twitter also have debugger tools for this purpose.

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