100% Pure Java XModem and YModem protocol implementation

Since 1998, and still the best!

Simply plug any java.io.InputStream & java.io.OutputStream into this class, and you have instant XModem and YModem connectivity, and the code conforms to the100% Pure Java guidelines!

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

X/YModem supports both 128 byte blocks using checksums (Xmodem) and 1024 byte blocks using CRC checking (Xmodem-1K). XModem and Ymodem are widely supported on many systems, so you can easily exchange files with legacy systems. Many popular communication products like ProComm Plus, and QModemPro support XModem and YModem so your target machine does not even have to run Java!

Java X/YModem, and Java SerialPort, the ultimate X/YModem file transfer tools.

License details.

X/YModem Professional

• 100% Pure Java XModem classes
• XModem - 128 byte blocks using checksum
• XModem1K - 1024 byte blocks using CRC
• YModem - send groups of files
• xPut & xGet examples for quick and easy command line file transfer
• Java source code for xPut & xGet
• Java source code for X/YModem classes
• One Professional X/YModem developer license

Purchase Information