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StemForge

Premiere Pro plugin · macOS

Your audio. Every element. Your call.

Bring the drums in when it matters. Let the piano breathe. Strip it back to just the guitar. Separate your track into stems, adjust the tempo and pitch, and shape every moment to fit your edit. All within your workspace.

From $35 CAD · one-time · lifetime license

Mix → stemsIllustration
Mix
Vocals
Drums
Bass
Other
Guitar
6-stem model
Piano
Tempo
Detected
Key
Detected
Render
To target
Illustration: a mixed track separated into vocals, drums, bass, and other stems, with guitar and piano available in the 6-stem model, plus BPM and key detection and time-stretch or pitch-shift rendering.

What it does

How it started

Less time getting ready to create.

I know I'm not the only one who's had to jump between multiple platforms just to achieve one goal.

One to separate a track. Another to find the BPM and key. Then somewhere else to adjust the audio before bringing everything back into the edit. I kept finding myself spending more time getting ready to create than actually creating.

That's why I built StemForge.

I wanted those steps together in one Premiere workflow, so you can spend more time shaping the sound and following your ideas.

The details

Description
StemForge is a desktop companion app and a Premiere Pro plugin working together. Drop in any track and it separates the stems: vocals, drums, bass, and other, or use the 6-stem model to also pull out guitar and piano. It detects BPM and musical key automatically, then renders a version time-stretched or pitch-shifted to match your project.
License
Every purchase comes with a Certificate of Lifetime License confirming your purchase. One payment, no recurring subscription. Full license terms.
File Size
About 380 MB total. Includes the desktop app, the Premiere Pro plugin, and a short setup guide. macOS only for now.

Bring it all into one Premiere workflow.

Pay what you want from $35 CAD. One-time payment, lifetime license.

macOS · Premiere Pro 2026 (26.0+)

Get StemForge for Mac