Typing Heatmap & Finger Accuracy
Complete a copying drill to view a keyboard heatmap of expected characters and mistakes. Frequency shows how often the passage asked for each key; Errors shows the percentage of attempts at each expected key that were incorrect, including corrected entries.
The finger breakdown uses standard QWERTY assignments. It cannot observe which physical finger you used, measure muscle strain, or diagnose why a mistake happened. Use the keyboard view to choose a character to investigate in another attempt.
Click the typing area and copy the passage, including spaces. Use Backspace for corrections. After reaching the end, switch between Frequency and Errors to compare views. The heatmap describes this session rather than all your saved attempts.
Run a drill
Type naturally. Your heatmap builds from this session.
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Your heatmap
Complete the drill above to see your heatmap.
Continue your practice
You can identify slow or missed keys, compare keyboard layouts, measure typing speed. Choose the tool that matches the question you want to answer, and compare results under similar conditions.
Choose the analysis you need
Single-attempt diagnostic
- Uses
- A new copying passage
- Shows
- Missed and slower characters from this attempt
Practice the suggested keys, then check a fresh passage.
Saved-mistake drills
- Uses
- Eligible mistake history in this browser
- Shows
- A drill for recurring errors across supported sessions
Review the sample size; return to the diagnostic if history is unavailable.
Keyboard heatmap
- Uses
- A new copying passage
- Shows
- A visual map of expected keys, error rates, and estimated QWERTY finger share
Check whether a dark key is frequent or error-prone; the two views differ.