Java ZModem

...purchased your serialio, modem and ZModem java products...implemented them in our production environment, communicating with 5 different sites multiple times each day and have been extremely pleased... testimonials.

100% Pure Java ZModem protocol implementation

Since 1999, and still the best!

Simply plug any java.io.InputStream & java.io.OutputStream into this class, and you have instant ZModem connectivity, and the code conforms to the 100% Pure Java guidelines!

Use ZModem with our SerialPort product, or with any serial port product that provides you with with Input/Output streams.

Because ZModem has 32-bit CRC checking, you can be sure your files will be safely transferred between systems. Because ZModem is widely supported on so many systems, you can easily exchange files with legacy systems. Many popular communication products like ProComm Plus, and QModemPro support ZModem so your target machine does not even have to run Java!

Java ZModem, and Java SerialPort, the ultimate tools in cross-platform file transfer.

License details.

ZModem Professional

  • 100% Pure Java ZModem classes
  • 32-bit CRC class
  • zPut & zGet classes for quick and easy command line file transfer
  • Java source code for zPut & zGet
  • Java source code for ZModem classes
  • One Professional ZModem developer license

Purchase Information