REDLINE
A tachometer for your mental load.
Your keyboard rhythm reveals subtle changes in cognitive load long before you consciously notice them.
Ease off — your engine is past the limit.
Why typing?
Under stress, typing rhythm becomes less consistent, corrections increase, hesitation grows, and pace drifts away from baseline. Research suggests these passive behavioral signals often reveal cognitive strain earlier than self-reporting — or even heart-rate variability — without requiring surveys or wearables.
What drove the load
Each keystroke-dynamics signal's intensity during the session, 0–100.
How engine load is calculated
A 0–100 index — like an air-quality or credit score — that blends four research-backed typing signals measured against your own calm baseline. Higher means more strain. It's an early signal, not a diagnosis.
Measures typing speed relative to your own calm baseline. Sudden acceleration or slowdown can indicate rising cognitive load.
Based on backspaces over total keystrokes. More corrections often reflect uncertainty or increased mental effort.
Captures how irregular your typing cadence becomes. Higher variability suggests disrupted cognitive flow.
The proportion of short, hesitant pauses while typing — a quiet signal of uncertainty or overload.
Because every metric is compared against your personal baseline, relaxed typing naturally stays near zero and sits in the green zone. The score reflects change from your normal — not absolute typing speed.
Scrub the session
A play-by-play of your typing load — hover the waveform to read any moment.
Predictive maintenance
The engine was warming up for days before today's redline.
Tonight's replay
Stress climbs through the session — and the moment it crossed the line.
Your words never leave your device.
We analyze typing timing — not content. Processing happens locally, and only timing metadata is used to estimate engine load.