CW Morse Code Practice Engine

Load a text file (one item per line) or press latest SPC, click Start, then type what you hear. Wrong answers replay the same item until correct. Stats persist in your browser (localStorage) and can be downloaded.

The Use latest SPC master database uses a local copy of SuperPartialCheck MASTER.SCP file, which containts around 50k active callsigns.

Callsign file (.txt)

Char WPM

Farnsworth overall WPM (0 = off)

Tone freq (Hz)

Volume (0–1)

Post-feedback delay (ms)

Show current item

No-repeat until exhausted

Type what you copied

Enter submits. You can also click Play to replay without counting an attempt. You can edit while audio plays.

Current item:

—

Load a file to begin.

Session summary

—

Log (completed items)

Timestamp	Item	CharWPM	OverallWPM	Attempts	TotalTime(s)	FirstTry	FinalTyped

Report

Worst characters (min occurrences)

Top confusions

Worst positions

George Smart, M1GEO.