Gruyera Notes
01Royalty split calculator02ISRC / UPC validator03BPM tap tempo04Album cover checker05Album cover image finder06Release date planner07Streaming payout estimator08Smart link generator09Audio format converter
01DistroKid or RouteNote — which one actually pays off?02DistroKid vs Ditto Music03DistroKid vs RouteNote04DistroKid vs Amuse05DistroKid vs TuneCore06DistroKid vs CD Baby07DistroKid vs UnitedMasters08DistroKid vs AWAL09Free audio editors

Album cover checker

Upload your artwork — nothing leaves your browser.

How this works

Most platforms reject cover art that isn't square or is too small. This checks your file's real dimensions and format instantly, without uploading it anywhere.

Ready to release your music?

Our pick

DistroKid

$18.59 first year

Upload unlimited songs for one flat yearly fee and keep 100% of your royalties. Use our link for 7% off your first year.

Start with DistroKid
Free option

RouteNote

$0 upfront

Don't want to pay anything upfront? RouteNote lets you distribute for free — they just keep a share of your royalties instead.

Try RouteNote free

Frequently asked questions

Why does cover art have to be square?

Every major streaming platform requires a 1:1 aspect ratio for cover art — non-square images get rejected or auto-cropped oddly.

What if my image is smaller than recommended?

It may still be accepted if it clears the platform's minimum, but it can look blurry on large screens. Aim for 3000×3000px or more if possible.

Is my image uploaded anywhere?

No — everything is processed locally in your browser using the file's own metadata. The image itself is never sent anywhere.