Master your song
Choose your mix, or a whole EP, and get a louder, balanced master ready for Spotify, YouTube and TikTok. Add a reference song if you want it to sound like one you love.
Loudness
Style
Fine-tune
Plays both at the same loudness, so you judge the sound and not the volume.
Download as
How to use it
- 1
Choose your finished mix, or several tracks of an EP or album.
- 2
Pick the loudness and a style. If you want, add a reference song and open "Fine-tune".
- 3
Compare Original and Master at the same volume, then download.
What people use it for
- Streaming releases
Bring the song to the loudness Spotify, Apple Music and YouTube expect.
- Beats
Make beats sound finished before sending them to artists.
- Demos
Send a demo that sounds closer to a finished song.
- Videos and reels
A louder, clearer track stands out on phone speakers.
- Checking a mix
Hear how your mix reacts to mastering before the final version.
Tips for a better result
- 01Leave headroom in the mix.
Export the mix with peaks around −6 dB and no limiter on the master bus.
- 02Use WAV for the mix.
Mastering an MP3 works, but the result is better from a lossless file.
- 03Start with Natural.
If it still sounds quiet next to your references, try Strong.
- 04Compare at the same volume.
Louder always seems better; lower the volume of the master to judge the tone.
Common questions
What does the mastering do?
It cleans the deep sub-bass, gently balances the tone against a commercial reference, glues the mix with light compression, keeps the bass in mono and raises the loudness with a limiter that never goes above −1 dBTP.
Which loudness should I choose?
Natural (−14 LUFS) is the level Spotify and YouTube play at, so nothing gets turned down. Strong and Max sound louder elsewhere but squeeze the dynamics more.
Is it free?
Mastering and listening to the whole song, switching between original and master, is free. Downloading the master in MP3, WAV or FLAC (the formats distributors such as DistroKid and ONErpm ask for) comes with Premium.
Does it replace a mastering engineer?
For demos, low-budget releases and social media it gives a solid result. A mastering engineer listens to the song as a whole and makes artistic choices that an automatic process does not.
How does the reference track work?
The page measures the tone, the loudness and the stereo width of the reference song and brings your master closer to it, without copying anything from it. Choose a song in the same style as yours.
Can I master a whole EP or album?
Yes. Choose several tracks at once: they all get the same settings and the same loudness, so the record sounds consistent from start to finish.
Is my song uploaded?
No. The mastering happens in your own browser, and the file is not sent to any server.