What is Open Graph Preview?
Open Graph Preview is a free browser-based SEO tool that helps you optimize your website content and technical setup. All analysis runs in your browser. No account or subscription required.
This tool lets you preview how your page looks on social media without installing any software or creating an account. Everything runs directly in your browser for maximum privacy. Your files and data never leave your device.
Use it for quick tasks at any time from any device — desktop, tablet or mobile. No subscription, no ads, no limits.
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Instant results
No server processing or wait
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100% private
Files stay on your device
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Always free
No subscription or fees
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Mobile ready
Works on any device
How to use Open Graph Preview
- Open the Open Graph Preview tool
- Enter your input data or upload your file
- Configure the settings for your use case
- Download or copy the result
Why use OnlineToolsPlus?
SEO tools on OnlineToolsPlus help you implement technical SEO correctly without a paid subscription. Generate schema markup, meta tags, robots.txt, sitemaps and URL slugs — all free. Analyze readability scores and keyword density. Everything runs in your browser. No crawling, no login, no monthly fee.
Frequently asked questions
What is Open Graph?
Open Graph is a protocol developed by Facebook that defines how web pages are represented when shared on social media. The og:title, og:description, og:image, and og:url tags are the core elements.
Why do I need Open Graph tags?
Without them, social platforms pull arbitrary content from your page, often the wrong title, a missing image, or an irrelevant description. Open Graph gives you control over how your content appears when shared.
What image size should I use for og:image?
1200 by 630 pixels is the recommended size for Facebook and LinkedIn. Twitter uses 1200 by 600 pixels. A 1200 by 630 image works well across all major platforms.
Can I preview how my page will look when shared?
Yes. The tool shows a preview of how your page will appear in a social media post after you fill in the tag values.
Do I need different tags for Twitter?
Twitter uses its own twitter:card, twitter:title, and twitter:description tags. The Open Graph generator includes Twitter card tags alongside standard og tags.
Does it work offline?
Yes.
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Last updated: April 11, 2026
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