N5SLN Morse Trainer

Learn Morse code with a complete, free CW trainer built by a ham radio operator. This Morse code trainer is designed for both beginners and experienced hams, with proven training methods to accelerate your learning.

Everything you need to learn CW is free: adjustable audio, character training, Koch method, adaptive practice, instant feedback, callsign recognition, and detailed progress tracking.

FREE FEATURES:

• Characters, numbers, punctuation & prosigns

• Adjustable speed (5–25 WPM) with Farnsworth timing

• Adaptive practice prioritizing characters you struggle with

• Koch method with G4FON and LCWO character orders

• Callsign practice with 31 countries and realistic prefix distribution

• Random letter groups for word-building practice

• Simple QSO exchanges (RST, names, locations)

• Text player: practice with any text you enter or paste

• Reference screen to browse and hear all Morse characters

• Per-character statistics and progress tracking with most confused pairs

• Works offline

OPTIONAL PRO UPGRADE:

• One-time purchase, no subscription

• Head Copy: hands-free practice with spoken answers — perfect for driving or walking

• QSO Generator: realistic POTA, SOTA, and contest exchanges

• Word lists: common words, ham terms, US states, or your custom list

• Custom Koch character order

• Extended speed up to 60 WPM

• Load and play text files

ROADMAP:

• Sending practice with on-screen key and paddle

• Audio input to practice with your own key or radio

Download and start mastering CW — free, complete, and at your own pace.

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