Studio-grade AI mastering. Preview free — pay only when you're happy.
Using preset: — drop a track to apply it
Drop your premaster
WAV · 24-bit · stereo · peak below −1 dBTP
or
Uploading…
Your presets
Manage
No presets yet — save one from a finished master.
Your premaster
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Preview region — drag to pick the 30s you want to master
0:00 – 0:30
30s
Drag the green region · click anywhere to jump
Track Analysis
A quick listen-through of your track before you shape it.
Analyzing your track…
Frequency spectrum · dB relative to loudest band
AI analysis
What we'll do when mastering
How should it sound?
Pick a direction — or load one of your presets.
Genre
Character
Loudness
How loud the final master gets. Not every track is a club track — quieter settings keep more dynamics and life. Streaming versions are always delivered at −14 LUFS.
Mastering strength70%
How firmly the genre reference shapes your sound. Lower keeps more of your original mix.
Describe your sound · optional
Write how it should sound — hit Analyze and the AI pulls out the keywords that shape your master.
Reference tracks · optional
Drop up to 3 tracks to match their sound · MP3 or WAV
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Rendering your master…
MEASURE
Your master preview
Compare it against your original. When you love it, hit "I'm happy" below.
Spectrum · master vs premaster · Hz / relative dB
Master stats
Settings of Master
＋ Save as preset
Happy with this master? 🎉
Unlocks all versions of this track for download. 1 credit — one time.
Unlocking spends 1 credit and starts your download immediately. Because the master is delivered right away, this credit can’t be refunded once used. By continuing you agree to our
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Refund Policy.
Not happy yet?
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Choose your platform
Download versions
Every version renders at your platform's ideal loudness. All included — you already unlocked this track.
Your studio
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New version
Describe what should change — Analyze pulls out the keywords, then create the new version.
Save preset
Save the settings of this version — reuse them on other tracks.
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FEEDBACK
Beta Feedback
How was your mastering result? Your feedback helps us make ZERRRO better.