How It Works

Four steps to studio-quality stems

Stemverter uses Meta’s DEMUCS AI engine to separate any song into individual stems — vocals, drums, bass, and instruments — entirely on your Mac. No uploads, no subscriptions, no internet required after activation.

Drop your tracks

Drag audio files into Stemverter or use the right-click Finder integration. Supports MP3, M4A, AIFF, WAV, and FLAC.

Choose your stems

Select which stems you need — vocals, drums, bass, melody, or all five. Process up to 10 tracks at once.

Pick your quality

Choose between 1x (fast) and 4x (high-fidelity) processing modes. 4x takes longer but produces cleaner separation.

Export your stems

Save as WAV, MP3, or AIFF at up to 24-bit quality. Original ID3 tags are preserved on every stem.

Powered by DEMUCS

DEMUCS is an open-source AI model developed by Meta Research for music source separation. Stemverter bundles the model locally so your audio never leaves your machine. Processing time depends on track length and your hardware — Apple Silicon Macs handle most songs in under a minute.

Buy Now

One-time purchase · Lifetime access · 2 Mac activations