Keeby plays realistic mechanical keyboard sounds as the user types, simulating the acoustic experience of physical mechanical switches without requiring new hardware. The sounds are sourced from real recordings of mechanical switch actuation and release, covering both keydown and keyup events. ($4.99, one-time)
The app includes 12 switch profiles drawn from popular mechanical keyboard switches: Gateron Red, Holy Panda, Alps Blue, Box Navy, Cream, Buckling Spring, Ink Black, Turquoise Tealios, Alpaca, and Topre. Users adjust tone through a 2D tone pad that maps brightness and weight independently. A per-key feel setting allows softening the sound of home-row keys, which are struck more frequently, to prevent audio fatigue. Mouse click sounds cover left, right, and middle button presses.
Spatial audio is available for users with stereo output: left-side keys play from the left channel and right-side keys from the right, creating a sense of physical keyboard width. A reactive visualizer overlays the screen, following the cursor position and illuminating keys as they are pressed. The audio engine uses a 128-frame lock-free buffer to minimize latency between keystroke and sound playback.
Favorite configurations — combining switch type, tone pad position, spatial audio settings, volume normalization, and sound effects — can be saved and recalled with a single click. The global shortcut CMD KKK toggles the app from anywhere on the system. Keeby runs from the menu bar with a hideable icon and minimal system resource usage.
System requirements: macOS version not specified; available on Mac App Store. Stereo output recommended for spatial audio.
Pricing: ($4.99, one-time)
Limitations: Spatial audio requires stereo speaker or headphone output; mono output or some Bluetooth headsets reduce the effect. The reactive visualizer adds a visual overlay that may be distracting during focused work; it can be disabled in settings. The app does not simulate haptic feedback for users relying on tactile confirmation.
Alternatives: Mechvibes (free, cross-platform, open-source) provides similar mechanical keyboard audio. HiDock adds audio and visual effects to the Dock rather than the keyboard experience. The built-in macOS keyboard click sounds in System Settings offer a basic alternative without third-party software.
Suitable for users who enjoy the tactile feel of mechanical keyboards and want to replicate or enhance the auditory aspect of typing on a MacBook or external quiet keyboard, particularly in home office environments where audio playback is acceptable.
