Skip to content

Twitter Summary Large Image Card Generator

Free

Generate summary_large_image Twitter Card meta tags with live preview. See your X card exactly as it will appear before adding tags to your page.

summary large image twitter cardx card generatortwitter card preview
All SEO Tools

Settings guide

Image dimensions:

Use 1200×628 px (2:1 ratio) for the sharpest result. The card renders at 600px wide by default on desktop, so a 1200px image provides 2× resolution for Retina screens. Never go below 300×157 px — X silently downgrades to summary format at smaller sizes.

twitter:title:

X shows up to 70 characters of title text in the card. Keep under 65 characters to avoid any wrapping on smaller screens.

twitter:description:

X displays up to 200 characters of description. Unlike meta descriptions, Twitter description tags are not shown in regular Google results — you can write them specifically for the X audience.

twitter:site vs twitter:creator:

twitter:site is your publication's handle (e.g., @yoursite). twitter:creator is the content author's personal handle. Both are optional but add attribution and are required for certain app integrations.

Format comparison

Large image card vs summary card:

Summary cards show a small 120×120 px square thumbnail to the left of the text. Summary large image cards show a full-width banner image above the text. For content sharing, the large image card consistently outperforms on click-through. Use summary cards only for app download cards or when you do not have a suitable landscape image.

Twitter Card tags vs Open Graph tags:

X falls back to og:image and og:title if no twitter:* tags are present. However, using explicit Twitter Card tags gives you control over the card type and allows different title/description text for the X audience compared to other platforms.

How it works

1

Select card type

Choose summary_large_image for a full-width banner image card in the X timeline.

2

Enter card details

Fill in your title (≤65 chars), description (≤200 chars), HTTPS image URL, and optional @site handle.

3

Preview the X card

See the rendered card exactly as it appears in the X timeline on desktop and mobile.

4

Copy and deploy tags

Copy the generated meta tag block and add it to your page head to activate the large image card.

About this format

The `summary_large_image` Twitter Card format displays a full-width banner image above your post title — giving your content significantly more visual presence in the X timeline than a text-only link or the small square thumbnail of the summary card format. If you are sharing articles, product launches, or campaign content on X (formerly Twitter), the large image card is the format that drives clicks.

This generator builds the exact set of `twitter:card`, `twitter:title`, `twitter:description`, `twitter:image`, and `twitter:site` meta tags required for the large image format, with a live preview showing how the card renders in the X timeline.

Key requirements: the image must be at least 300×157 px (recommended: 1200×628 px for high resolution), must be served over HTTPS, must be under 5 MB, and must be a JPG, PNG, GIF, or WEBP. Images that fail any of these conditions silently fall back to the summary card format — no error, just a smaller card. The preview here confirms your card renders at the large format before it goes live.

Frequently asked questions

What is the difference between summary and summary_large_image on Twitter?+
Summary shows a small square thumbnail to the left of the text. Summary_large_image shows a wide banner image above the text. The large image format gets significantly more visual attention in the timeline and typically earns higher click-through rates for article and content links.
Why is my Twitter Card showing as a summary card instead of large image?+
The most common causes are an image smaller than 300×157 pixels, an image over 5 MB, an HTTP image URL instead of HTTPS, or an unsupported image format. X silently falls back to summary format when any requirement fails. Use the Twitter Card Validator to see what X actually fetched from your page.
Do I need both Twitter Card tags and Open Graph tags?+
X falls back to Open Graph tags if Twitter Card tags are absent. However, explicit Twitter Card tags let you specify different title and description text for the X audience, and the twitter:card tag is required to select the card type. Add both sets of tags for full control across all platforms.
What image format works best for Twitter Cards?+
JPEG works best for photographs and complex imagery. PNG works best for graphics with text, logos, or transparent elements. WEBP is supported and provides smaller file sizes. GIF is supported but only the first frame is shown — the card does not animate.
How do I validate my Twitter Card after publishing?+
Use Twitter's Card Validator tool at cards-dev.twitter.com to enter your live URL and see how X reads and renders the card. It shows which tags were fetched and flags any errors. Note that X requires the page to be publicly accessible — it will not crawl password-protected or localhost pages.

Related tools and guides