Support
Stemverter 3 Support
Guides, system requirements, and answers to common questions.
How Stemverter Works
Learn how the DEMUCS AI engine separates songs into individual stems on your Mac.
Read more →System Requirements
Check the minimum and recommended Mac specs for Stemverter 3.
View specs →Guides & Tutorials
Step-by-step guides for getting the most out of stem separation.
Browse guides →License Management
Manage your activations, transfer licenses, and download your .lic file.
My account →Frequently Asked Questions
How do I activate my license?+
After purchase you’ll receive a license key by email. Open Stemverter, click Activate, and paste your key. The app contacts our server once to verify — after that, it works entirely offline.
Can I transfer my license to a new Mac?+
Yes. Deactivate on your old Mac (Stemverter → Preferences → Deactivate), then activate on the new one. If you no longer have access to the old Mac, log in to cfloinc.com/account and remove the machine there.
What audio formats are supported?+
Stemverter accepts MP3, M4A, AIFF, WAV, and FLAC as input. Output stems can be exported as WAV, MP3, or AIFF at up to 24-bit quality.
Does Stemverter require an internet connection?+
Only for license activation. All stem separation runs locally on your Mac — your files never leave your computer.
Why is there a 2-Mac activation limit?+
Each license supports 2 personal Macs so you can use Stemverter on both a studio machine and a laptop. If you need more activations, contact support@cfloinc.com.