Reddit Link Preview & Thumbnail Aspect Ratio Generator
Simulate how Reddit renders link thumbnails and post cards on desktop and mobile feeds.
What is the Reddit Post Preview Card Generator?
The Reddit Post Preview Card Generator by CompleteSEOTools is an enterprise social metadata and Open Graph optimization utility engineered to format, debug, validate, and preview link share cards across Facebook, Twitter / X, LinkedIn, Discord, and WhatsApp.
How to Use the Reddit Post Preview Card Generator (Step-by-Step)
Enter Metadata
Input titles, descriptions, canonical URLs, and 1200x630 image paths.
Preview & Validate
Inspect live card previews and validate against WhatsApp 300KB limits.
Deploy to Head
Copy and paste the generated Open Graph meta tags into your HTML <head>.
Open Graph & Social SEO Architecture Guidelines
Ensuring high social CTR requires standard 1200x630 pixel images (1.91:1 aspect ratio), image file sizes under 300KB for WhatsApp compatibility, summary_large_image Twitter cards, and self-referential og:url canonical links.
Frequently Asked Questions (FAQs)
Reddit uses 1200x630 (1.91:1) for large card previews and 1:1 squares for compact thumbnail lists.