Album cover size checker
Stores want a square cover, and the WBBT standard is 3000 by 3000 pixels. Drop your image below to check its shape, pixel size, format and file size, and to download a 3000 by 3000 copy if yours is square and big enough.
The image is read and resized in your browser. It is not uploaded, and nothing is stored by WBBT.
What the checker looks at
It reads four things from your file: the shape (it must be square), the pixel size (3000 by 3000 is the standard WBBT asks for), the format (the Release Wizard accepts JPG, PNG or HEIC) and the file size (up to 30 MB). Each gets a pass, a warning or a fail, with a sentence saying what to do.
The cover you deliver is the one every store receives, and stores show it at many sizes, from a tiny list thumbnail to a large album page. A sharp square master gives them the most to work from. The checker does not judge the design; keep store logos, web addresses, prices and promotional wording off the artwork, as the metadata and artwork guide explains.
The 3000 by 3000 copy
If your image is square and at least 3000 pixels on each side, the tool can draw a 3000 by 3000 copy with your browser's canvas and offer it as a JPG download. Downsizing keeps the picture sharp. The copy is a new file, so your original is not touched.
If the image is smaller, the tool will not enlarge it. Stretching a small picture just makes it soft, and a store or a reviewer will see that. Export the artwork again at full size from your design file instead. If the image is not square, crop it in your editor before checking, so that you decide what stays in the frame.
Questions
What size should album cover art be?
The WBBT standard is a square image of 3000 by 3000 pixels. The Release Wizard accepts JPG, PNG or HEIC files up to 30 MB.
Why does the tool not enlarge a small cover?
Enlarging adds pixels that were never there, so the image gets blurry. The tool warns you and leaves the file as it is. Export the artwork again at 3000 by 3000 from the original design.
Does it crop non-square images?
No. Cropping is a creative choice, so the tool asks you to crop in your editor and then check the result here.
Is my image uploaded?
No. The browser reads the file on your device and draws the new copy there. Nothing is sent to a server.
Why can my HEIC file not be checked?
Some browsers cannot open HEIC images. The Release Wizard accepts HEIC, but to check or resize it here, export a JPG or PNG copy before you check it.
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