SimpleMorse: Learn Morse Code with the Koch Method

The SimpleMorse platform provides a free, browser-based Morse code learning system, structured around the Koch method across 35 progressive lessons. It introduces characters one at a time, requiring 90% accuracy over 20 tries to unlock the next letter. Users can adjust the character speed from 15 WPM to 25 WPM, with an emphasis on learning by sound rather than visual dot-dash memorization, recommending 18 to 20 WPM for individual characters and utilizing Farnsworth spacing for overall slower reception.

The resource details a four-week practice plan, guiding learners through the 35 lessons and transitioning to decoding short words. It also includes supplementary tools such as a Morse translator with a tap key, a microphone/audio-file decoder, and a printable alphabet chart. The site saves user progress locally in the browser, facilitating consistent daily practice sessions of 10 to 20 minutes.