OGImageSize
OGImageSize is a free, no-login toolkit designed for developers, SEO teams, and content creators to optimize Open Graph social previews. It provides a complete workflow from image sizing to final URL validation, ensuring shared links render correctly across Facebook, X/Twitter, LinkedIn, Slack, Discord, and generic crawlers.
Core Tools
- OG Image Size Guide – Reference for the recommended 1200 × 630 px baseline, platform-specific dimensions, safe zones, and common mistakes.
- OG Image Generator – Create clean 1200 × 630 PNG images from fixed templates, then copy ready-to-use meta tags and preview the final URL.
- Open Graph Preview – Enter any URL to inspect og:title, og:description, og:image, HTTPS status, dimensions, and cache freshness in one view.
- OG Image Tester – Run a diagnostic pass checking image response, Twitter card tags, HTTPS, dimensions, and common preview blockers.
- Meta Tags Generator – Produce copy-ready HTML
<meta>, Twitter card, and Next.js metadata tags from a single form.
Workflow
The tools are chained: Check size → Generate image → Copy tags → Preview URL → Fix issues. Each step surfaces platform-specific requirements (absolute image URLs, explicit width/height tags, cache invalidation) so you catch silent failures before publishing.
Platform Coverage
Validates previews for Facebook shared link cards, X/Twitter large summary cards, LinkedIn article previews, Slack workspace unfurls, Discord link embeds, and generic Open Graph crawlers.
Accessibility
First version is completely free, indexable, and requires no authentication—ideal for quick checks during development or content audits.
