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About LCWO - Learn CW Online
(only in English for now)
This site, Learn CW Online (LCWO), was established in May 2008 by Fabian Kurz, DJ5CW (Impressum, profile), hoping to make learning and practicing CW (Morse code) as easy and effortless as possible.
LCWO is under constant development; all comments and suggestions are welcome. To get in touch with the author, use the contact form or send an email to firstname.lastname@example.org. For general questions and discussion, feel free to use the forum. Thanks to all the users who contributed to the project so far. Without all the feedback the site wouldn't be what it is today!
Using LCWO is and will always remain free of cost. We are not interested in monetary donations.
Many thanks to following persons for translating the user interface to new languages:
If you like to help to translate LCWO to another language, please get in touch with Fabian, DJ5CW via email. Thanks!
Spread the word!
If you like to link to LCWO from your website or blog, you may want to use one of the following banners or buttons. Also high resolution logos (b/w) are available for QSL cards.
Logos for QSL cards (ZIP file with several formats, PDF, EPS, PNG):
Reviews / Ratings
Feel free to use the following announcement of LCWO for your club newsletter, website, blog, etc.
A new website to learn and practice Morse telegraphy has been launched: http://lcwo.net/ - Learn CW Online There are already hundreds of training programs, MP3/CD courses and practice aids available, but LCWO follows a radically different concept: While sticking to well-proven methods for learning and practice, all you need for using LCWO is a web browser! This gives the user the liberty to practice CW wherever an internet connection is available, always retaining the personal settings, scores and statistics. Currently the site, which is available in 33 languages offers a complete Koch method Morse course, code group practice, callsign- and plain text training modes and also allows to convert random text to Morse MP3s. A high score list is available to compare results with other users, personal statistics help to track training progress. LCWO.net is a non-commercial project. Creating a free account only takes a few seconds, and you can start practicing CW right away! Fabian Kurz, DJ1YFK
Browser compatibility, technical stuff
LCWO supports all modern browsers (Firefox, Chrome, Safari) and it known to work with Edge and Opera.
Development of LCWO takes place under Debian GNU/Linux and Ubuntu, using the fantastic vim editor. The site runs on an Apache Webserver, is mostly programmed in PHP (without any frameworks, all homebrew) and uses a MySQL database. The Morse code is generated by jscwlib, the downloadable Morse MP3 and OGG files are generated by customized versions of ebook2cw which run as compiled CGIs, written in C.
LCWO is Open Source and you can find the source code at https://git.fkurz.net/dj1yfk/lcwo.