OG Image Checker
About

A tiny toolkit for links that look good everywhere

Every time someone shares your link, the platform renders a preview: an image, a title and a description. That 1200×630 rectangle is often the first — and only — impression your page gets. ogimagechecker.com exists so you never have to guess what it looks like.

The site is deliberately simple. There is no account, no email wall, no credits. You paste a URL, you get five live platform previews, a full Open Graph tag audit and a score. When something is broken, the tool tells you exactly what and why — and thefree generator lets you produce a compliant replacement image in seconds.

What's inside

  • OG Image Checker — live previews for X, Facebook, LinkedIn, Discord and WhatsApp, plus a tag audit with pass/warn/fail verdicts.
  • OG Image Generator — three templates that export a 1200×630 PNG, rendered entirely in your browser.
  • Free API — the same checker as a GET endpoint, for CI pipelines and scripts. No key required.
  • Guides — a growing blog covering OG image sizes, platform quirks and troubleshooting.

How it's built

Static-first Astro pages on Cloudflare Pages, a Cloudflare Pages Function for the server-side fetching (browsers can't fetch third-party pages directly because of CORS), and D1 for the anonymous check counter. The generator runs 100% in your browser — your images never touch our servers.

Contact

Found a bug or a preview that renders wrong? Open an issue onGitHub.