Open source libraries and utilities to support using digital signatures for Amateur
radio QSL information. It can be used to digitally sign and upload QSOs to the ARRL's Logbook of the World (LoTW) online service and to manage the Callsign Certificates used when digitally signing. TQSL accepts QSOs in a log file whose format is either ADIF or Cabrillo, which many logging applications can create.
Download and convert Spotify music to various formats at 10X speed
This program lets you record sound files and save them into various formats
