Ideas become MIDI
No mouse detours. No setup marathon. Press a key, hear the instrument, capture the idea.
KeyFlow turns your Mac keyboard into an expressive MIDI instrument. Scales, chords, and human feel – directly inside your DAW.

ONE MIDI WORKFLOW. EVERY SESSION.
KeyFlow sits right between your musical impulse and the DAW – making the path so short that technology stops feeling like technology.
No mouse detours. No setup marathon. Press a key, hear the instrument, capture the idea.
Scale Lock and Chord Mode keep you musically free without slowing you down with menus.
KeyFlow sends true MIDI. Your instrument, your sound, and your project stay exactly where they are.
KeyFlow handles the theory and leaves you with what matters: listening, reacting, and keeping the music moving.

A small set of precise tools. Every parameter serves the music and stays within reach while you play.
Stay confidently in key – from Chromatic freedom to focused songwriting scales.
Triads, inversions, 7th, 9th, and 11th chords from a single key.
Subtle velocity variation makes repeated notes feel less static and more performed.
Match the intensity to your instrument and the musical moment.
Change registers instantly or add a solid foundation automatically.
KeyFlow Out, IAC Driver, or another MIDI destination – ready for every modern DAW.
A native macOS app, optimized for Apple Silicon and immediate response while you play.
Hold note clusters intelligently and spread chord tones for a more natural attack.
KeyFlow does not replace a full-size MIDI keyboard. It replaces the moment when an idea disappears because your keyboard was not ready.
The interface speaks the same language as the app and its manual: dark, focused, with green only where something is alive.
KeyFlow in detail
The visual keyboard instantly shows which keys, notes, and chord tones are active.
KeyFlow in detail
Root, Scale, Chord, Velocity, and Humanize remain immediately accessible.
KeyFlow in detail
MIDI Output, keyboard layout, and Global Play are exactly where you expect them.
XHL Audio builds focused tools for modern music production – fast to understand and deep enough for professional sessions.
KeyFlow for macOS
Secure checkout · Instant access · EUR incl. applicable VAT
The most common answers before your first chord. XHL Audio Support is here for everything else.
Open supportKeyFlow works with every DAW that accepts MIDI input for instrument tracks – including Logic Pro, Ableton Live, FL Studio, Studio One, Cubase, Nuendo, Pro Tools, REAPER, Bitwig, and GarageBand.
Yes. KeyFlow runs natively on Apple Silicon and requires macOS 13 or later.
KeyFlow is a MIDI instrument and intentionally generates no sound of its own. It plays the synth, sampler, piano, or any other instrument loaded in your DAW.
No. That is exactly what KeyFlow is built for: your QWERTZ or QWERTY keyboard becomes a playable MIDI controller.
Maintenance and compatibility updates for your version are included. We will communicate major future versions clearly in advance.
After purchase, your personal license key appears directly on the confirmation page. The license is intended for your personal use.
No. Purchasing and initial license delivery happen online; while producing and playing, KeyFlow runs locally on your Mac.
The license is designed for personal use. The final number of simultaneous activations will be specified in the license terms before the public launch.
READY WHEN YOU ARE
Open KeyFlow. Load your instrument. Start playing.
Start now