Null-modem emulator download

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)

Project Samples

Project Activity

See All Activity >

License

GNU General Public License version 2.0 (GPLv2)

Follow Null-modem emulator

Null-modem emulator Web Site

Other Useful Business Software

Comprehensive Cybersecurity to Safeguard Your Organization | SOCRadar

See what hackers already know about your organization – and stop them from getting in.

Protect your organization from cyber threats with SOCRadar’s cutting-edge threat intelligence. Gain 360° visibility into your digital assets, monitor the dark web, and stay ahead of hackers with real-time insights. Start for free and transform your cybersecurity today.

Free Trial

Rate This Project

User Ratings

4.4 out of 5 stars

★★★★★

★★★★

★★★

★★

★

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5

design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

Filter Reviews:

All

darkmillaengine Edited 2025-04-09

This software is awesome for managing serial ports on Windows. I use it in combination with SerialTool (www.serialtool.com) and it works great!! EDIT: the latest version of SerialTool supports Virtual COM Port creation as well.
daniel1963 Posted 2023-01-18

Serial connection between virtual machines without the need for hardware. One of the most effective programs I have
avancuren Posted 2021-08-03

This is simple, solid and did EXACTLY what I needed. This is one of the little tools that I keep around forever to pull out when I need just that.
shraibikus Posted 2020-08-24

Good!
spicos Posted 2019-04-09

Super Job!!!

Additional Project Details

Operating Systems

Windows Server, Windows

Languages

English

Intended Audience

Advanced End Users, Developers, Testers

User Interface

Win32 (MS Windows), Command-line

Programming Language

C++, C

Related Categories

C++ Serial Software, C++ Telnet Software, C++ Emulators, C Serial Software, C Telnet Software, C Emulators

Registered

2005-01-24

Similar Business Software

Serial to Ethernet Connector

Serial to Ethernet Connector is a stable software product developed by Electronic Team Inc. and has been available commercially for over a decade. The application lets you create multiple virtual COM ports on a machine with no physical serial interfaces. This virtual serial port redirector...

See Software
FlexiHub

FlexiHub is a software as a service for redirecting all types of USB devices over the network and accessing remote USB devices over the Internet. It is a subdivision of Electronic Team, Inc. and has remained the flagship product since it was presented in 2014. FlexiHub is a convenient...

See Software
Tera Term

Tera Term is the terminal emulator for Microsoft Windows, that supports serial port, telnet and SSH connections. Among many other features it also has built-in Macro scripting language. Tera Term is often used to automate tasks related to remote connections initiated from PC. Tera Term is a free...

See Software