REAKTOR 4, the award-winning modular sound studio, is the ultimate tool for sound design and music production. REAKTOR 4 lets musicians and engineers design and build their own instruments, samplers, effects and sound design tools.
REAKTOR 4 is also a world-class studio right out of the box – its Library includes dozens of exceptional instruments and effects and the online User Library is growing every day.

REAKTOR offers access to an arsenal of sonic tools limited only by the imagination.

Vastly improved and expanded with many new high-performance features, REAKTOR 4 enters new sonic dimensions. Besides an even more brilliant sound, the new modules and interface elements, integrated browser, graphical sample mapping and new preset functions guarantee the highest level of comfort and flexibility. The new library, created by top sound designers, offers an extensive selection of instruments for nearly every type of application in modern music production. More...


Construct your own instruments





REAKTOR makes it possible for you to invent and realize your own virtual instruments. Select from more than one hundred modules and function blocks (macros), such as oscillators, filters, LFOs, samplers, sequencers and effects, and create your own instruments by “cabling” the various elements together. Existing instruments can be combined and enhanced, or take out parts of them to use in building other instruments. The control surface can also be custom designed – from the size and layout of the knobs and displays to the integration of images and graphics. More...


Instruments for every application





The completely newly designed library for REAKTOR 4 includes an extensive collection of first-class synthesizers, samplers, drum machines, loop tools, step sequencers, live performance machines and effects units, each one with thousands of presets. All instruments can be played right away – standalone or as a Plug-In in every professional sequencer. More...



Integration is everything


REAKTOR 4 supports nearly every professional interface for integration into any computer studio. In addition to standalone use with ASIO and Core Audio®, REAKTOR 4 also works as a Plug-In via VST 2.0® (Windows, Mac OS 9, Mac OS X), Audio Units® (OS X), and DXi® (Windows).

Mac OS X Compatible