CWops Morse Code Trainer

Practise copying and sending Morse code using a scheme of sessions developed by Rob Brownstein of CWops. The software is written by Stephen C Phillips. A Japanese version is also available.

Personalisation

For some of the sessions some additional information is needed. This information is not sent to nor stored on the server.

Session

Choose your session and then practise the copying and sending segments.

Feedback

For Copying and Random activities, choose whether you want to hide the text, or see a flashcard displayed afterwards.

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Play each of these segments again and again until you feel you recognise the sound pattern. Click on word tiles to hear them separately.

Text to copy

Flashcard

Play a segment, then try to imitate it, exactly, using your key or keyer. Repeat it as many times as it takes to feel that you’ve got the correct word pattern.

Text to send

If you need to practise any other sequences then enter them below. If you want to use prosigns then enclose them with angle-brackets (e.g. "<bk>").

Choose the letters you want to practise:

The letters above are shuffled to make “words” of characters,
each repeated times.
The “sentence” will have words.

Flashcard

History
Sound Controls
Segment gap
Donate

If you find this software useful, please make a small donation to the author (and convince his wife that the time spent on it is worthwhile...).

Thank you!

Donate

Notes

Please enable cookies on this site to store your preferences between training sessions.

There are many keyboard shortcuts which can also access additional functions such as playing the next segment. Press ? to list them.

This trainer is known to work well in recent Chrome, Firefox, Safari and Edge web browsers, including mobile versions (which implement the Web Audio API and can be downloaded here). It works in Internet Explorer v11, but has some sound artefacts and several useful features are hidden.

The download buttons download a WAV file of the sound for the segment displayed with a pause at the end defined by the segment gap. Safari does not properly support the download buttons but they can be made to work in the desktop version by holding the Option key when clicking them and then saving the file with the ".wav" file extension.

Offline version

If you want to use this training software offline then you can download it here. To use it, unzip the file, go into the folder and double-click on "index.html". It's a bit out of date, but everything should work apart from the donation button!

Change log