Stop drilling letters you already type well.
Most typing practice makes you type ordinary English text. That text follows normal letter frequency, so about 70% of your keystrokes are E, T, A, O, I, N, S, H, R — letters you already type quickly. The keys actually costing you speed barely appear.
TypeCrt's KeyForge inverts that. It measures how fast and how accurately you hit every individual key, then generates practice text weighted toward the ones you're worst at.
Take one 60-second test. KeyForge builds your per-key profile and starts targeting the slow ones immediately.
Start Free →KeyForge records the interval between each keypress and the one before it, per key. Typing "the" quickly but stalling before every Q shows up as a specific, measurable delay — not just a lower overall WPM.
Each letter gets a confidence score combining speed and accuracy. Fast and correct raises it; slow or mistyped lowers it. The keyboard heatmap renders this directly — red keys need work, green keys are solid.
A Markov chain generates pronounceable words that over-represent your low-confidence keys while staying readable. You aren't typing nonsense strings — you're typing real-feeling words that happen to be dense in your problem letters.
New letters only enter your rotation once existing ones clear a confidence threshold. This keeps sessions difficult enough to improve but never overwhelming.
Weak keys differ per typist, but they cluster predictably. Yours will be revealed by the heatmap after a few tests — these are the usual suspects:
| Keys | Why they're slow |
|---|---|
| Q, Z, X | Rare in English and pressed by the little finger, the weakest and least-trained digit |
| P, ;, / | Right-hand pinky stretches far from the home row and often mis-lands |
| B, Y | Longest reaches from the index fingers; frequently hit by the wrong hand |
| Number row | Requires leaving home row entirely; rarely practiced in standard tests |
| Shift + letter | Two-key combinations double the coordination cost, especially for capitals on the same hand |
Fifteen minutes daily beats an hour once a week. Muscle memory consolidates through repetition spaced across days, not through single long sessions.
Use a tool that measures speed and accuracy per individual key, then generates text weighted toward your slowest letters. Because a small subset of keys causes most of a typist's delay, drilling those specifically raises overall WPM much faster than typing random words.
The individual letters you type measurably slower or less accurately than the rest — usually ring and little-finger keys, stretches from home row, and rare letters. Every typist's set is different, which is why a per-key heatmap matters more than generic advice.
For anyone past beginner stage, yes. Normal practice text follows English letter frequency, so you mostly rehearse letters you're already good at. Adaptive lessons concentrate time on the keys actually limiting you.
Completely. No account, no signup, no ads. Your progress saves locally in your browser.
Most people see measurable per-key gains within a week of 10–15 minutes daily. Full consolidation takes three to four weeks, though the heatmap usually shifts after a few sessions.