Open Graph tags aren’t JSON-LD schema in the traditional sense, but they are a form of structured data that directly affects how your content appears when it’s shared on Facebook, LinkedIn, Twitter, and other platforms. opengraph.xyz lets you enter any URL and see exactly how the page’s Open Graph markup renders across multiple social platforms in one view. You get a preview of the title, description, and image as they’ll appear in a social card, along with a raw view of the OG tags the tool has detected.
I find this tool particularly useful during site launches and content audits. It’s easy to set up OG tags in a CMS and assume everything is working, then discover months later that your default OG image is a tiny logo, your descriptions are being truncated, or your social share images are the wrong aspect ratio for the platform. opengraph.xyz surfaces those issues immediately. The multi-platform preview is genuinely helpful because a title that displays well on Twitter might be truncated on LinkedIn due to different character limits.
It’s a focused tool that does one thing well. It doesn’t validate JSON-LD or Schema.org markup, and it won’t tell you anything about your rich results eligibility. But for the specific job of verifying that your pages look correct when shared on social media, it’s one of the quickest and most reliable free options available. Worth bookmarking alongside your schema validators as a standard part of your on-page technical health checks.