Cleared
Check the files before your distributor does.
Drop your master and cover art. See which services would turn them down, and why.
Drop the master and the cover.
Both at once, or one at a time. WAV, FLAC or AIFF for the master; JPG or PNG for the cover. Other formats are read too, and you will be told what is wrong with them.
8
services checked, each against its own published rules.
0 uploads
Your files are read in your browser and stay on your computer.
What gets a release sent back
The wrong kind of file
An MP3 where a WAV is asked for, 24-bit where only 16-bit is taken, a mono file, a CMYK cover.
The wrong size
A cover under the minimum, over the maximum, or not square.
What is in the audio
Clipping, peaks that will distort once encoded, long silence at either end, a track that is too short.
Fair questions
Is my unreleased track safe?
It never leaves your computer. The page reads the file in your browser and measures it there; nothing is uploaded, stored or sent to anyone. You can load the page, switch off your connection and it still works.
What does it check on the master?
What the file says about itself: format, sample rate, bit depth and channels. Then what is in it: loudness, peaks, clipping, silence at both ends and length. Each company’s stated rules are applied to those facts.
What does it check on the cover?
Format, pixel size, whether it is square, colour mode and file size. It does not look at the picture, so the rules about text, logos and blurry images are listed for you to check by eye.
Where do the rules come from?
From each company’s own help or specification pages, read on 12 November 2026. Every answer links to the page it came from. Where a page does not state something, the table says “Not certain” and does not guess.
If it says Cleared, will my release be accepted?
It means the files fit the stated technical rules. Releases are also reviewed for the artwork’s content, the titles and credits, and rights. A file check cannot see those.
What does it cost?
Nothing, and there is no account or limit.
Who made this?
Antonio Rescigno, who runs NUDA, an independent label and distributor, and asks artists for corrected files more often than he would like.