- Author: James Teh <jamie@jantrid.net> & other contributors
- Copyright: 2018-2025 James Teh & other contributors
- License: GNU General Public License version 2.0
ReaKontrol is a REAPER extension which provides advanced host integration for Native Instruments Komplete Kontrol keyboards. It runs on both Windows and Mac and requires REAPER 5.92 or later.
ReaKontrol supports Komplete Kontrol S-series Mk2, A-series and M-series keyboards. While some initial work has been done to support S-series Mk1 keyboards, this is not yet functional.
The following functionality is currently supported:
- Focus follow; i.e. the Komplete Kontrol instance is switched automatically when a track is selected.
- Transport buttons: Play, Restart, Record, Stop, Metronome, Tempo
- Edit buttons: Undo, Redo
- Track navigation
- Clip navigation: moves between project markers
- Mixer view: volume/pan adjustment with the 8 knobs
- The track name and mute, solo and armed states are displayed as appropriate.
For now, there is no installer. You can download the latest build of the extension here.
Once downloaded, simply copy the reaper_kontrol.dll file you downloaded to the %appdata%\REAPER\UserPlugins folder using Windows File Explorer.
You can get to this folder by copying the name above and pasting it into either the Windows Run dialog or the File Explorer address bar.
You do not need to add a control surface or perform any other configuration in REAPER. Komplete Kontrol Host integration should work as soon as you start REAPER with a Komplete Kontrol keyboard connected.
Issues should be reported on GitHub.
This section is for those interested in building ReaKontrol from source code.
The ReaKontrol Git repository is located at https://github.com/jcsteh/reaKontrol.git. You can clone it with the following command, which will place files in a directory named reaKontrol:
git clone --recursive https://github.com/jcsteh/reaKontrol.git
The --recursive option is needed to retrieve Git submodules we use.
If you didn't pass this option to git clone, you will need to run git submodule update --init.
Whenever a required submodule commit changes (e.g. after git pull), you will need to run git submodule update.
If you aren't sure, run git submodule update after every git pull, merge or checkout.
To build OSARA, you will need:
- Several git submodules used by OSARA. See the note about submodules in the previous section.
-
Build Tools for Visual Studio 2022
Visual Studio 2022 Community/Professional/Enterprise is also supported. However, Preview versions of Visual Studio will not be detected and cannot be used.
Whether installing Build Tools or Visual Studio, you must enable the following:
- In the list on the Workloads tab, in the Desktop & Mobile grouping: Desktop development with C++
- Then in the Installation details tree view, under Desktop development with C++ > Optional:
- C++ Clang tools for Windows
- Windows 11 SDK (10.0.22000.0)
-
Python, version 3.7 or later:
-
SCons, version 3.0.4 or later:
- Once Python is installed, you should be able to install SCons by running this at the command line:
py -3 -m pip install scons
- Xcode 13: download from the Mac App Store.
- Please run
xcodeat least once to make sure the latest command line tools are installed on your system.
- Please run
- Homebrew: download and install using the instructions at the Homebrew website
- Verify the installation with the
brew doctorandbrew updatecommands.
- Verify the installation with the
- download and install
pythonandsconsusing thebrew installcommand.
To build ReaKontrol, from a command prompt, simply change to the ReaKontrol checkout directory and run scons.
The resulting extension can be found in the build directory.
- James Teh
- Leonard de Ruijter