Professional-Grade
Music Mastering Made Easy
Upload your track and get a studio-quality master in seconds — free.
Hear it for yourself
Real tracks, raw mix vs. duet.to master. Hit play and flip between Original and Mastered.
Hip-Hop+6.6 LU louderWestside
rap — West Coast / G-funk
Electronic+6.5 LU louderSunset Festival
festival / melodic house
Pop+4.5 LU louderSkyline
pop — dance-pop
Rock+7.8 LU louderStatic
indie / alt rock
Now hear it on your track
Upload your mix and get a free, streaming-ready master in seconds — no card, no plugins.
Music Mastering is Challenging
Are you struggling with these common mastering issues?
- Uncertainty on industry loudness standards
- Muddy low-end and frequency imbalances
- Inconsistent volume levels across tracks
- Lack of clarity and definition in the mix
- Difficulty achieving a professional sound
We Handle the Music Mastering Stage — You Focus on Pure Creation
Duet.to brings studio-quality mastering to your home setup. Our advanced mastering engine analyzes your tracks, applying industry-standard processing techniques to achieve the perfect balance, clarity, and loudness for your music.
Say goodbye to complex plugin chains and hello to professional results. Whether you're working on radio-ready singles, EPs, album projects, or preparing tracks for streaming platforms, duet.to delivers mastering that rivals high-end studios at a fraction of the cost.
Mastering that earns its place
The specific things a great master does for your track — handled automatically.
Squeeze out the last 0.1 dB — without clipping
A proprietary, program-aware smart limiter pushes your master to competitive, streaming-ready loudness while preserving transients — so it gets loud and keeps its punch, instead of the squashed, lifeless sound aggressive limiting leaves behind. The exact LUFS shows live as it plays.
Immediate, better mix translation everywhere
A balanced master holds up the moment it leaves your monitors — in the car, on earbuds, through a phone speaker, on a club system. The engine evens the tonal balance and tames problem resonances so your track sounds like itself on every system.
Tighten a muddy low end
Build-up in the low-mids is what makes a mix sound boxy and unfinished. Our proprietary de-mud algorithm detects that build-up and significantly reduces it where it's found, then sculpts the EQ curve so the lows stay tight and powerful, the mids open up, and the whole track gains clarity and definition.
Why work with us?
Advanced Technology
Leverage cutting-edge algorithms for professional-grade mastering.
Smart EQ & Low-End Balance
Our engine sculpts your EQ curve and tightens the low end automatically — no reference track required.
Free AAC, Lossless WAV
Download studio-quality AAC (M4A) masters free, or grab the lossless WAV when you need the deliverable.
Real-time Processing
Monitor progress as your tracks are mastered in real-time.