Check any image against Facebook's recommended post, cover and profile dimensions.
This tool checks an image you upload against Facebook's recommended pixel dimensions for shared image posts, page cover photos, profile pictures and event cover photos, then tells you whether it will display cleanly or get cropped.
Facebook displays images differently depending on where they appear: a cover photo is a wide banner shown behind your page name, a profile picture is shown as a small square or circle across the site, and a shared post image sits inside the feed at a roughly landscape ratio. Using one image for all of these without checking its ratio usually means an awkward crop somewhere.
A "Great match" verdict means your image's ratio and resolution are close enough to the recommended size that Facebook shouldn't need to crop it meaningfully. A "Close" verdict means a small crop is likely at the edges. A "Different ratio" verdict means a significant portion of your image, potentially including important content near the edges, may be cut off.
If your check comes back as a poor match, use the Social Media Image Resizer tool on this site to crop your photo to the exact target dimensions before uploading it to Facebook.
Facebook Post Size Checker is built for creators, social media managers, small business owners and marketers who need a quick, reliable way to handle one specific job: check any image against facebook's recommended post, cover and profile dimensions. Instead of digging through a bloated all-in-one dashboard or installing a browser extension, you get a single focused page that does exactly this one thing well, works the same way on desktop and mobile, and keeps your inputs on your own device rather than sending them anywhere else. If this is a task you find yourself repeating every week, bookmark this page so it's one click away next time you need it.
Whatever this tool hands you — text, an image, a calculated number, or a piece of code — treat it as a strong first draft rather than a final answer. Skim the result against the specific post, account or campaign you're working on, adjust anything that doesn't quite match your usual voice or brand, and only then copy it into the platform you're actually posting to. Because everything here runs locally in your browser, you can safely try several combinations of inputs back to back without worrying about rate limits, accounts, or data being logged anywhere — refresh the page any time to start over with a clean slate.
No, the image is read and measured entirely inside your browser using JavaScript. It is never sent to a server.
Check each image individually against the Shared Image Post option, since Facebook applies similar cropping rules to each image in a multi-photo post.
This tool checks pixel dimensions and aspect ratio only. Facebook applies its own compression to all uploaded images regardless of size, which is separate from cropping.
Facebook's recommended sizes are based on how the image is displayed across desktop and mobile layouts, which results in specific, non-round pixel dimensions.