- A program to decode morse code (CW) via sound card to text. It can work as narrow-band sound DSP-filter also. No additional hardware required — you need only receiver and computer with a sound card. Can integrate with AALog logger.
- Multichannel, continental code receiver for Sound Blaster cards by HA5DM
- SerialKey is a Freeware DOS Morse code keyboard that uses the serial port, by Jeff Rowberg (KF6RLU)