Try online mastering free
listen first, pay later.

Upload your song and listen to the mastered chorus for free – side by side with the original. If you like it, unlock the full master for $2.24.

Get your first master free Hear before/after

No credit card · GDPR compliant · Servers in Germany

Listen: original vs. master

0:00
Original
-16.0 LUFS
Master
-9.0 LUFS

Both versions play in sync. You just switch – no jump, no gap.

Free preview

The strongest 45-second section of your song (usually the chorus) is mastered for free.

Fair comparison

With loudness matching you hear the real difference in sound – not just "louder".

No account needed

Start as a guest; at checkout we only need your email for the invoice and access link.

How the free test works

Upload your finished mix, choose a sound style – or let "Automatic" decide – and shortly after you get an A/B preview. Switch between original and master instantly, with waveform and loudness values.

Only when you like the result do you unlock the full master. No subscription, no notice periods: you buy credits, 1 credit = 1 song, and credits never expire.

Three steps to your master

  1. 01

    Upload

    Drag & drop WAV, MP3, FLAC, AIFF or M4A. Title, artist and cover are optional.

  2. 02

    Pick a style

    Loud & modern, Club, Balanced or Streaming-transparent. When in doubt, the default fits almost everything.

  3. 03

    Compare & download

    A/B the master against your original and download WAV and MP3 with tags already set.

Fair prices. No subscription.

Buy credits and use them whenever you like. They never expire.

Free

$0

Listen as much as you like: free A/B previews + 1 full master after email confirmation

Sign up free
Popular

EP pack

$22.36

12 masters
$1.86 per master

Get started

Producer pack

$56.06

35 masters
$1.60 per master

Get started

Final prices. No VAT charged (German small business, § 19 UStG).

Frequently asked questions

Is the preview really free?

Yes. The A/B preview costs nothing and requires no payment details. There is a limited number of free previews per day.

Do I need an account?

No. You can start as a guest. At checkout only your email address is required; invoice and access link arrive by email.

How much is the full master?

$2.24 per song. Larger packs are cheaper per song.

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Try online mastering free listen first, pay later.

Get your first master free