Engine sound for macOS

Type.Drive.

Your keyboard becomes the throttle. Hold a rhythm, climb through the gears, and feel focused work gather momentum.

Not a soundboard

It feels driven because it is.

Redline reads cadence, not content. Your first keystroke starts the engine. Sustained flow earns higher gears. A pause eases the pedal instead of killing the momentum.

Every combustion pulse, exhaust resonance, shift, and overrun is synthesised live. There are no sampled RPM layers hiding underneath.

Redline's live tachometer and firing-order instrument

Live instrument / V8 cross-planeTyping speed → gearbox → engine speed

The garage

15 engines.

From the thump of a single cylinder to the clean howl of a V12. Every layout has its own firing order, exhaust geometry, and voice.

01V8 Cross-PlaneBurble / 700–6,800

02V10Howl / 900–8,500

03RotaryPulse / 1,100–9,000

04Flat-6Balance / 750–8,200

05V12Smooth / 700–8,000

+10And ten moreIncluding Ion Drive

Mechanical by design

Sound you can see.

The inner ring plots one complete engine cycle. Each mark is a real firing event, driven by the same crank angle that creates the sound in your headphones.

Continuous RPMNo pitch-shifted layers

Live firing orderUp to sixteen cylinders

Private by design

Your words stay yours.

Redline needs timing to feel your rhythm. It does not need—and cannot reconstruct—the words beneath your fingers.

Letters, numbers, and symbols all become the same anonymous “character” event.

No typed content or global key events are stored or transmitted.

Settings and aggregate counters stay on your Mac.

The keyboard monitor is listen-only and cannot alter or inject input.

Put an engine under your keyboard.

Try every engine for 2,000 words.

Get Redline for Mac

One payment · ₱199 · No subscription