Twitter Card Validator

Preview how your link looks on X and check every card tag. A free replacement for the Card Validator that X retired.

X Card Preview

Your Brand @yourbrand · 1m

New post is live:

Validation Results

Need a unique card image for every page?

Design one template and generate a 1200x628 card for each blog post, product or profile with the Image Automation API. See how it works for OG and social card images.

Try it free

X Card Tags

Tag	Value	Status

All meta tags found

Suggested Meta Tags

Paste these into the <head> of your page. Replace any placeholder values.

How to Validate a Twitter Card

Paste the URL of the page you want to share on X.
Click "Validate Card" to fetch its twitter: and og: meta tags.
Check the X card preview and switch between the large image and summary layouts.
Fix the errors and warnings, then copy the suggested meta tags into your page.

What Happened to the Official Twitter Card Validator?

Twitter's Card Validator (cards-dev.twitter.com/validator) was the standard way to preview a card before posting. In 2022 Twitter removed its preview, and X never brought it back. Today the only built-in check is pasting the link into the post composer, which needs a logged-in account and tells you nothing about what is wrong.

This X card validator reads the same tags the X crawler reads, shows the card, and lists every problem it finds: missing tags, relative or non-HTTPS image URLs, unsupported formats, and images that are too small or will be cropped.

X Card Types

twitter:card	What it shows	Use it for
summary_large_image	Full-width image with the title on top of it and the domain below	Blog posts, landing pages, products. The default for most sites.
summary	Small square thumbnail next to the domain, title and description	Docs, profiles, pages where a logo is the only image
player	Inline video or audio player	Media pages. Needs extra twitter:player tags and approval from X.
app	App name, icon and store link	Mobile app promotion. Needs twitter:app:* tags.

Twitter Card Image Size

Card	Recommended	Minimum	Maximum	Aspect ratio
summary_large_image	1200 x 628 px	300 x 157 px	4096 x 4096 px	1.91:1
summary	Square image	144 x 144 px	4096 x 4096 px	1:1

Use JPG, PNG, WEBP or GIF under 5 MB. SVG is not supported, and animated GIFs only show their first frame. Serve the image from an absolute https:// URL that does not require a login.

Twitter Card Meta Tags

A large image card needs only twitter:card plus a title and an image. X falls back to og:title, og:description and og:image when the twitter: versions are missing, so pages that already have Open Graph tags usually need one extra line. A complete set looks like this:

<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="@yourbrand" />
<meta name="twitter:title" content="Your page title (up to 70 characters)" />
<meta name="twitter:description" content="A short summary (up to 200 characters)" />
<meta name="twitter:image" content="https://example.com/card-1200x628.png" />
<meta name="twitter:image:alt" content="What the image shows" />

Checking Facebook and LinkedIn too? Use the OG Image Preview tool.

Generate X Card Images Automatically

Stop exporting card images by hand. Templated renders a unique 1200x628 image for every page from one template.

Image Automation API

Send a title, author or product photo to the Image Automation API and get back a ready-to-use card image URL for twitter:image and og:image.

Built for OG and social cards

See how teams generate OG images and social cards for blogs, docs, e-commerce and SaaS pages.

Templates included

Start from the template gallery or design your own card in the drag-and-drop editor, then render it with no-code tools like Zapier, Make or n8n.

What our customers say

People love how great our product works and how we're always there to help

Rated 4.7

"Business pressures now demand almost a 24x7 operation. The difference between choosing one SaaS product or another isn't just down to the technical capabilities of each, but down to their responsiveness when it doesn't quite work. In this case, an issue blocked us from being able to use the platform as intended. Within minutes of using the live chat, the issue was not only reproduced but correctly identified. Within the hour, the hot fix had been coded, tested and applied - unblocking the bottleneck and allowing us to carry on working. This is exceptional and the reason why I can't recommend this company enough - I'm so impressed and very grateful for their hard work. Keep it up!"

March 12, 2026

Jason

"This is a clever idea, especially in concert with programmatic (AI-generated) SEO."

17 January 2024

Ryan Hoover

Creator of ProductHunt

"We were looking for tools to help our users create and edit images with templates. We tried options like Canva, but Templated.io turned out to be the perfect choice for our product. It offers an easy API to render images, and its embed editor lets us provide our users with a full editing experience without having to create complex frontend components. It's a really great tool!"

September 16, 2025

Harish

"We integrate Templated.io into our portal for custom flyer generation. The editor is amazing, and the Canva import tool is exactly what we were looking for. Massive shoutout to Pedro for the technical support. He responds incredibly fast and fixes issues in no time. Highly recommended!"

June 9, 2026

Yuan Zhuang

"Brilliant piece of software. Reasonably priced (vs Canva's outrageously expensive API), and despite a few intricacies with the editor, a really fully-featured document generation API. Really great support too from Pedro, the founder!"

August 17, 2025

Jacob Burns

"Very reliable platform. Almost no errors ever. Easy to setup templates and use the API. And AMAZING support!"

March 24, 2026

Lawrence Perera

"We booked the "Scale" package to use it as a "print product editor" and we are amazed by the features and the support! Pedro replies to every question and also implemented small hints to the API for better functions on our request. Absolutly great Software and Service!"

December 18, 2025

Sven Rißmann

südheide.media

"Templated.io is basically a an API-first graphics content designer which makes it super easy to programmatically create document and image assets. It has most basic features and it is robust and "just works". The Make.com app really makes it super simple to incorporate into automation workflows. What sets templated.io apart the most is Pedro and his super fast and service minded, solutions oriented responses."

May 26, 2025

Siavash

"Amazing API, perfect support and a lot of new features on a monthly basis."

November 26, 2025

Kalina Staykova

"Currently working through an implementation of Templated.io and the customer service has been spectacular!!! I get near immedate response and near immediate remedies. It's glorious. I wish other companies were like this!!! Strong recommendation!"

July 17, 2026

Tracy C

"The editor is easy to use, very similar to Canva and the API is simple enough to integrate on the backend."

20 February 2024

Halem Wenderson

Developer at Telvetto

Twitter Card Validator FAQs

Common questions about Twitter (X) cards and how to fix them

Is there still an official Twitter Card Validator?

No. Twitter removed the preview from its Card Validator (cards-dev.twitter.com/validator) in 2022, and X has not replaced it. The only built-in option is pasting the link into the X post composer. This free Twitter card validator shows the card and explains what is wrong without posting anything.

How do I validate a Twitter card?

Paste the page URL into the validator above and click "Validate Card". It fetches the twitter: and og: meta tags, renders the X card preview, and lists errors (missing twitter:card, no image, relative image URL), warnings (small or cropped image, HTTP image, long title) and the tags that pass.

What is the correct Twitter card image size?

For summary_large_image cards, use 1200x628 pixels (about 1.91:1). The minimum is 300x157 and the maximum is 4096x4096. For summary cards, use a square image of at least 144x144. Keep the file under 5 MB in JPG, PNG, WEBP or GIF format.

Why is my Twitter card not showing on X?

The usual causes are a missing twitter:card tag, an image URL that is relative or needs a login, an image over 5 MB or in SVG format, a robots.txt rule that blocks Twitterbot, or an old version of the page cached by X. Run the URL through the validator to find which one applies.

How do I refresh a Twitter card after changing my tags?

X caches card data for about seven days, and without the old Card Validator there is no button to clear it. Share the URL with a query string, for example ?v=2, so X treats it as a new link and fetches the tags again.

Does X use Open Graph tags?

Yes. If twitter:title, twitter:description or twitter:image are missing, X uses og:title, og:description and og:image. twitter:card has no Open Graph equivalent, so add it yourself to choose between the summary and large image layouts.

What is the difference between summary and summary_large_image?

summary shows a small square thumbnail next to the title and description. summary_large_image shows a full-width image with the title on top of it and the domain below. Use the large image card for blog posts, products and landing pages, where the image does the selling.

Why does X not show my description on large image cards?

X shows large image cards as the image with the title overlaid and the domain underneath. The description is only visible on summary cards, so put your key message inside the image itself.

Is this X card validator free?

Yes. It is free with no signup and no limits. It works for any public page that does not require a login.

How can I generate Twitter card images automatically?

Design one card template and render a unique image per page with the Image Automation API. Pass the page title, author or product photo, then set the returned URL as twitter:image and og:image. See the OG images use case for examples.

Automate Your X Card Images

Generate a social card for every page with one API call. Start free with 50 credits.

Try For Free

Related Free Tools

Discover more free tools you might find useful.

View All Tools