Twitter (𝕏) Card Validator
Preview how your website will look on Twitter (𝕏) with our Card Validator. Debug and validate that your Twitter card meta tags render perfectly before sharing.
Preview how your website will look on Twitter (𝕏) with our Card Validator. Debug and validate that your Twitter card meta tags render perfectly before sharing.

Create Open Graph images for link previews on Twitter, LinkedIn, Facebook and more. Customize title, description, logo, and background, then export at 1200×630.

Create realistic Twitter (𝕏) posts instantly and customize all elements of a tweet for presentations and mockups without posting to the actual platform.

Create custom Twitter (𝕏) banners and profile headers to boost your brand awareness and engagement. Fully customizable and 100% free.

A complete reference of image and video sizes for the most popular social media platforms, updated for 2026.

Turn tweets into beautiful sharable images with customizable themes.
I don't know when it happened but Brandbird is now my all-in-one SaaS & social media design tool.
Founder Senja.io

A Twitter Card is the rich preview that appears when you share a link on X (formerly Twitter). It can display a title, description, image, and domain — making your shared links more engaging and clickable in the timeline.
Twitter Cards increase click-through rates by showing visual previews of your links. They boost engagement, make your content stand out in feeds, provide context before users click, and give your shared URLs a professional appearance.
Add Open Graph and Twitter meta tags to your page's HTML head: twitter:card, twitter:title, twitter:description, and twitter:image. Use the Twitter Card Validator to preview and debug how your URL will appear before sharing.
Paste any URL into the validator, and it fetches the page's Open Graph and Twitter meta tags to render an accurate preview of how the link will appear when shared on X (formerly Twitter). It also highlights any missing or incorrect tags.
For summary_large_image cards, use 1200x628 pixels (1.91:1 ratio). For summary cards, use 144x144 to 4096x4096 pixels (1:1 ratio). Images should be under 5MB in JPEG, PNG, or GIF format.
Common causes include missing og:image or twitter:image meta tags, incorrect image URL (must be absolute), image file too large (over 5MB), SSL/HTTPS issues, or the image hasn't been crawled yet. Use the validator to diagnose the exact issue.
Yes, BrandBird's Twitter Card Validator is 100% free to use. Test unlimited URLs and preview how they'll appear on X (formerly Twitter) without any sign-up.
og:image is the Open Graph standard used by most platforms (Facebook, LinkedIn, etc.), while twitter:image is Twitter-specific. Twitter will fall back to og:image if twitter:image is not set. For best results, include both tags with the same image URL.