Settings & Account

Modes

Character set

2 letters unlocked

Characters: K M

Speed & groups

Min
Max
WPM
Constant value
Min
Max
WPM
Constant value
Min
Max
Random range
Auto Sequence Level Adjustment (Group mode)

Tone & Envelope

Equal min/max = fixed tone.

Min
Max

Tie = fixed volume; range = sample per symbol (weak-signal training).

Constant value
5 ms
LinearSmooth

Rise/decay: 5 ms · Dot ≈ 52 ms @ 23 WPM · Smoothness: 0%

Sign In

Login is only needed to sync settings and history across devices. Without login, data stays on this device.

Firebase not configured

App is running in local-only mode. Data will be saved locally.

Morse Code Trainer

Train Morse. Fast. Focused. Fun.

Activity (characters per day)

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MonWedFri
2026-02
2026-03
2026-04
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New to this level? Listen to the letters:

Group Training

Hear the group first, then answer from memory.

Hear the group first, then type it—let it buffer so you recognize whole letters and words.