AscendLab

Developer tools

Open Graph Image Size Checker

Free browser tool

Open Graph Image Size Checker

Check local social sharing image dimensions before publishing. Review 1200 x 630 px fit, aspect ratio, minimum width, and file size without uploading the image.

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Quick answer

An Open Graph image size checker reads a local image and checks whether it fits common social card dimensions.

It is useful before attaching an image to og:image, Twitter cards, or social preview metadata.

Best inputs

Final exports

Use the exact PNG, JPG, or WEBP you plan to publish as a social image.

Preview images

Check blog, tool, docs, product, and landing page sharing graphics.

Image check method
The browser reads the selected file and reports its natural dimensions.

The tool checks dimensions, width, approximate 1.91:1 aspect ratio, and practical file size guidance.

It does not upload files, fetch remote images, or guarantee exact cropping on every social platform.

SEO workflow fit

Use this before Meta Tag Previewer when preparing Open Graph images for pages, articles, and tool launches.

After deployment, use live social card debuggers to confirm how platforms render the final URL.

Common use cases
These are the jobs people usually mean when they search for an Open Graph image size checker.

Blog cover QA

Check a post image before adding it as og:image.

Tool launch cards

Verify sharing graphics for tool pages and product updates.

CMS image review

Confirm image dimensions before uploading assets into a CMS.

Design handoff

Give designers a simple size check for social preview exports.

Example, assumptions, and limitations
Social image size checks are practical guidance, not platform guarantees.

Example

A 1200 x 630 px PNG passes the common Open Graph size and ratio checks.

Assumption

The selected local file is the same image you plan to publish.

Limitation

The tool does not inspect remote URLs, cache state, platform-specific crops, or social debugger results.

Frequently asked questions

Does this upload the image?

No. The image is read locally in the browser.

What size should I target?

1200 x 630 px is a common Open Graph image target.

Can it check a remote URL?

No. This version checks local files only to stay fully browser-side.

Can platforms still crop the image?

Yes. Different platforms and layouts can crop or scale previews differently.

Suggested workflow

Social preview image path

Prepare the image dimensions, check Open Graph fit, and preview the metadata before publishing.

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