Kern is a powerful polyphonic software synthesizer designed for both Windows and macOS platforms, supporting multiple plugin formats including VST2, VST3, CLAP, AAX, and AU. It offers seamless integration with modern MIDI keyboard controllers, allowing users to control every parameter through MIDI Continuous Controllers with full MIDI Learn functionality. This design ensures an intuitive and hands-on approach to sound creation, making it an excellent choice for musicians seeking responsive and expressive performance.

Built with native C++ code, Kern delivers high performance with minimal CPU usage, allowing it to handle up to 64 voices of polyphony including portamento features. The synthesizer features dual band-limited oscillators with Hard Sync capabilities, alongside a 4-pole zero-delay feedback lowpass filter available in two types. Additional sound-shaping tools include two envelopes, one LFO, and a chorus effect, providing a wide sonic palette for crafting rich textures and dynamic sounds.

Kern also supports MTS-ESP micro-tuning technology, enabling dynamic tuning adjustments for creative musical expression beyond standard temperaments. Its user interface is resizable and offers two alternative panels, enhancing usability and visual customization without compromising performance. This makes Kern an efficient and flexible synth for producers and performers who demand both detailed control and reliable stability in their software instruments.