Decode mode
An animated Morse pattern lights up left to right. Identify the character from 4 options. Tap Replay anytime. Hint button available in Beginner and Intermediate.
From simple letters to Q-codes and prosigns — three difficulty levels that grow with your skills. Animated patterns, weak spot tracking, no login required.
Each session is 20 questions. Choose your difficulty to see what's covered.
All 26 letters · 10 numbers · 8 punctuation · Easy distractorsNo login · Progress saved locally · Free forever
Three difficulty levels — each covering different types of Morse knowledge.
All 26 letters A–Z, all 10 digits, and 8 punctuation marks. Easy distractors, free hints, animated at 8 WPM. Decode mode only. No timer. Best for new learners.
Same 44 characters but with confusable-pair distractors (E vs I, K vs C). Adds 4 essential prosigns: AR, SK, BT, KN. Encode mode unlocked. 12 WPM. Hint costs a point.
All 10 prosigns, top 20 Q-codes, and 20 common Morse abbreviations (CQ, DE, 73…). Q-code questions test meaning not pattern. Speed mode unlocked. 15 WPM. No hints.
An animated Morse pattern lights up left to right. Identify the character from 4 options. Tap Replay anytime. Hint button available in Beginner and Intermediate.
A letter or character appears on screen. Choose the correct dot-dash pattern from 4 visual options. Trains active recall — harder than Decode. Unlocks at Intermediate.
The Q-code abbreviation appears (e.g. QTH). Select its correct meaning from 4 choices. Tests vocabulary — no Morse pattern shown. Only in Advanced level.
Pattern animates once at 15 WPM — then a 10-second countdown begins. No replay, no hints. Unlocks at Advanced difficulty. Simulates real CW operation speed.
Missed characters appear twice as often in future sessions. Results screen shows your top 5 weak spots with their patterns. Stored locally — no account needed.
Press 1 2 3 4 to answer. Press R to replay. No mouse needed — great for speed training.
All characters, prosigns, and Q-codes tested in this quiz. Study before you start or use as a reference.
Everything about this quiz, the difficulty levels, prosigns, and Q-codes.