How fast is "normal" morse code?
Licensed operators historically needed 5 WPM (words per minute); comfortable conversational speed is 15-25 WPM, and contest operators copy 35+. The timing is standardized: at any speed, a dash is three dots long, letters are separated by three dots of silence, and words by seven. This generator follows that standard exactly, so what you hear at 20 WPM is what you would hear on the air.
What tone frequency should I use?
Real CW (continuous wave) receivers typically pitch morse between 500 and 800 Hz - the range where human hearing separates rhythmic detail best. 600 Hz is the common default. Nothing stops you from generating morse at 100 Hz or 2 kHz here, but if you are learning to copy code, train at the pitch you will actually hear.
Can I download the audio?
Yes - the WAV button renders your exact message, speed, and tone offline and downloads it as an uncompressed WAV file. Everything happens in your browser; the text is never sent anywhere. Need an MP3 instead? Run the WAV through the audio converter.
What does SOS sound like?
Three dots, three dashes, three dots - sent as one continuous sequence with no letter gaps: di-di-dit dah-dah-dah di-di-dit. It was chosen in 1906 precisely because the rhythm is unmistakable, not because it abbreviates anything. Type "SOS" above and press play to hear it.