Free automatic mastering

Rendering a full track takes several passes over the audio on the server. 5 free masters are enough to try the tool on singles; after that, mastering is paid with Notes, which you earn on the platform itself.

Previews are free: up to 30 variants a day (a 30-second excerpt). Full masters: the first 5 tracks are free, then 40 Notes per track. Notes are Stream-Q's bonus currency: you earn them for tracks rated on streams and other activity on the site; they can't be bought.

If a render fails, or you cancel a job while it's still queued, the free credit or the Notes you spent come back automatically.

24-bit WAV (at the source sample rate, no lower than 44.1 kHz) for distribution and 320 kbps MP3 to play on a phone or send in a chat. Files are kept for 30 days; the loudness figures stay in your history.

Nobody but you: the files are private and can only be downloaded from your account. The source is deleted 7 days after it was last used, previews after 3 days.

Spotify, YouTube, Yandex Music and Apple Music normalize loudness (to about −14 LUFS, Apple to −16). A track that's too loud just gets turned down, and the dynamics squashed by the limiter don't come back. That's why “Streaming −14” is a sensible default, and “Club −8” is for DJs and systems without normalization.