Null-modem emulator icon
Null-modem emulator icon

Null-modem emulator

The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another.

Null-modem emulator screenshot 1

Cost / License

  • Free
  • Open Source

Platforms

  • Windows
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Features

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  1.  Serial-port

 Tags

  • rs232
  • virtual-com
  • virtual-serial-port-driver
  • create-virtual-com-port
  • virtual-serial-port

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Null-modem emulator information

  • Developed by

    Unknown

  • Licensing

    Open Source and Free product.

  • Alternatives

    10 alternatives listed

  • Supported Languages

    • English
Null-modem emulator was added to AlternativeTo by A-Nicoladie on and this page was last updated . Null-modem emulator is sometimes referred to as com0com. 
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What is Null-modem emulator?

The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. The HUB for communications (hub4com) allows to receive data and signals from one COM or TCP port, modify and send it to a number of other COM or TCP ports and vice versa.

Features :

  • com0com: baud rate emulation
  • com0com: pinouts customization
  • com0com: noised line emulation
  • com0com: paired port settings monitoring (baud rate, data bits, stop bits, parity)
  • com0com: hiding 'unavailable' ports from user
  • hup4com: spliting data from one serial device into several virtual serial ports
  • hup4com: redirecting serial to TCP/IP and TCP/IP to serial
  • hup4com: RFC2217 - Telnet Com Port Control Option (client and server)

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