Drop your audio file and instantly see its sample rate, channels, length and whether it clips — so your release never gets rejected by a store. Ownership and royalties follow the applicable agreement private: nothing is uploaded, everything runs in your browser.
Most stores accept a minimum of 16-bit / 44.1 kHz stereo audio (WAV or FLAC preferred for best quality). Tracks should be free of digital clipping (peaks under 0 dBFS) and long enough to count as a real track (usually 30 seconds or more). This checker flags anything that could cause a rejection — before you upload.
Prepare eligible releases for supported digital services with clear current-plan terms while retaining ownership subject to your agreement.