Stop Dealing With Fake Stereo Files in Pro Tools.

MonoMate detects and converts dual mono stereo files to true mono — before you even open your session.

One-time purchase. No subscription. *Requires Mac · Windows version coming soon

Buy MonoMate — $29 Learn more
MonoMate scanning and converting fake stereo files

The Frustrating Reality of Importing Audio

Artists and collaborators send you "stereo" files that are actually identical left and right channels.

  1. 1 Import the stereo file into Pro Tools
  2. 2 Check to see if it's actually dual mono
  3. 3 Split the stereo track to two mono tracks
  4. 4 Delete the duplicate channel
  5. 5 Pan the remaining one to the center
  6. 6 Repeat for every. single. file.

What MonoMate Does

A simple tool created by a mix engineer that saves you hours of tedious non-creative work.

1

Select a folder

Drop in your stems folder or select it from Finder.

2

Recursive scan

MonoMate scans all audio files, including subfolders.

3

Detect dual mono

Identifies all stereo files where L and R are identical.

4

Choose files

Review and select which files to convert.

5

Convert to mono

Outputs true mono files with preserved quality.

No guessing. No manual checks. No Pro Tools workarounds.

Built for Audio Quality

Technical decisions that matter to engineers who care about their audio.

Bit-perfect comparison

Compares L/R channels sample-by-sample, no approximations.

No processing

No summing, no gain change — just channel extraction.

Format preservation

Preserves WAV/AIFF format, bit depth, and sample rate.

Safe by default

Real stereo files are left completely untouched.

Why MonoMate

Older tools

  • Outdated code
  • Slow on modern macOS
  • Buggy interface

Subscription tools

  • Recurring fees
  • Overkill features
  • Cloud dependencies

MonoMate

  • Native Swift — fast on Apple Silicon
  • Buy once, yours forever
  • Works offline, no cloud
Tape Op Magazine
"I've noticed that a lot of my Tape Op reviews say, 'This will speed up my mixing process,' and many times these new apps and plug-ins certainly do help me work faster, but I can guarantee you that MonoMate will speed up the beginning of all my mix sessions... Less guesswork, less searching, less splitting to mono and deleting, and more time actually mixing. Thank you MonoMate!"

Larry Crane

Tape Op Magazine

"This is great! I've been dealing with 'stereo' tracks from Logic users for YEARS."

— Paolo

"Thank you for making this!"

— Chris

"WTF this is awesome!"

— Matthias

"What in the actual f*#^, this has truly made my week."

— Tom

"This is gold"

— Semming

"MonoMate was the biggest no-brainer buy ever. Thanks so much!"

— Tyler

Who It's For

If you've ever sighed when importing "stereo" tracks — MonoMate is for you.

Mixing Engineers

Music Producers

Post-Production Editors

Anyone Receiving Stems

macOS Native — Built with Swift for macOS Sonoma and later. Runs entirely on your machine — no cloud, no uploads.

Ready to Clean Up Your Sessions?

Stop wasting time on tedious stereo-to-mono conversions.

Buy MonoMate — $29

Instant download. One-time purchase. *Requires Mac · Windows version coming soon