Free AAC mastering — limited-time launch

Professional-Grade
Music Mastering Made Easy

Upload your track and get a studio-quality master in seconds — free.

★★★★
loved by artists
No credit card required
Before / After

Hear it for yourself

Real tracks, raw mix vs. duet.to master. Hit play and flip between Original and Mastered.

Westside
Hip-Hop+6.6 LU louder

Westside

rap — West Coast / G-funk

0:00-14.8-8.2 LUFS0:00
Sunset Festival
Electronic+6.5 LU louder

Sunset Festival

festival / melodic house

0:00-14.5-8.0 LUFS0:00
Skyline
Pop+4.5 LU louder

Skyline

pop — dance-pop

0:00-13.4-8.9 LUFS0:00
Static
Rock+7.8 LU louder

Static

indie / alt rock

0:00-14.9-7.1 LUFS0:00

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.

duet.to screenshot
Why duet.to

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.

Got your master? Make the video.

BeatSync turns your finished track into a stunning, beat-synced music video — ready for TikTok, Reels, and YouTube. No editing, about 3 minutes.

Pricing

Ready to get started?