COM Port Redirector
Redirect serial port data over Network

COM Port Redirector (Serial to Ethernet Connector) is a software tool that enables you to redirect up to 500 serial port devices over network (Internet or LAN). A single COM port can be accessed by multiple computers in the network, no matter where the port is actually located. With Serial Port Redirector by Eltima there is no problem of working with remote serial devices - be it a modem or any other kind of equipment that uses serial ports for communicating with a PC. Remote and virtual serial ports and devices will be treated by your apps as if they were plugged directly into your machine.

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Also available on Linux OS and Windows Mobile

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OEM For Developers

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With COM Port Redirector you can

Redirect serial ports over TCP/IP network (Server)

Server listens for incoming connections from clients and redirects local COM ports – either real or virtual – over Ethernet. Any application that can initialize outgoing connection to TCP/IP server can be a client. A single COM port can be redirected to multiple clients at the same time, and each of them can transmit data to their local serial port, while COM Port Redirector will gather all the data on the server.
Connect to serial ports remotely (Client)

Once a client connection is created, data transmitted by a local serial port is redirected to the remote server over TCP/IP protocol. You need to specify the IP address (or the network name) of a remote server and TCP port to connect to, it is not required to install Serial Port Redirector on the remote server. Once your machine and a remote server are connected, your local serial port will receive all the data sent from the remote end.
Utilize UDP for data transfer

Serial port data can be redirected over UDP/IP transport protocol and broadcast over a local network. Serial port redirector installation is not required at the remote end. You can choose either RAW data transmission algorithm or Telnet (RFC 2217) as a protocol for transmitting the data.
COM Port Redirector for Linux OS

COM Port Redirector (Serial to Ethernet Connector) is a cross-platform solution, it now has a command-line version for Linux OS. You can designate a Linux machine as a server and Windows machine as a client, or the other way around. Serial Port Redirector for Linux supports data transmission over UDP.

Download COM Port Redirector for Linux OS now!

Linux version for ARM-based devices is available. Now you can share serial ports on ARM devices or connect to remote devices. Note: you need D-Bus to be installed on your device to use this version.

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COM Port Redirector full features list

	No limitation on the quantity of virtual serial ports or connections created (except your system resources)
	Manage port signal lines states in connections
	Verify connection's integrity by using "send command to keep connection alive" feature
	Set pauses after which all received data is sent to remote end when using UDP as underlayer protocol
	Share your serial ports and devices with others over TCP/IP network
	Both TCP/IP and UDP/IP protocols are supported
	Easily connect to remote computer using TCP/IP Telnet protocol, with the RFC 2217 Telnet extensions for COM Port Control
	Share an unlimited number of serial ports simultaneously for remote connections
	Serial port names are not restricted to COMxx only and may have virtually any name
	High speed data exchange from/to virtual serial port (up to 256 Kbits)
	Virtual serial ports work like real physical ports
	Automatically restore connection within a customizable timeout on connection breaks
	Small packet transmission speed can be increased by disabling Nagle algorithm
	Dynamically change COM port parameters without necessity to reopen or re-create it
	Ports are automatically configured every time you boot your PC
	Map your real serial port to any other virtual or real port
	Customize advanced connection settings when you switch to Advanced mode
	Easily track all program's activity in "Activity log"
	Secure your data transmission over network by authorization system and traffic encryption
	Connection speed in serial port pairs is much more reliable and faster than in physical links
	Ability to create your own libraries for authorization and encryption (OEM only)
	User-friendly and convenient program interface
	Fully compatible with Windows 2000, Windows (32-bit and 64-bit): XP/2003/2008/ Vista/7/8/10, Windows Server 2012
	Fully compatible with HyperThreaded and multi-processor systems
	Works in virtual machine
	Single license allows you to install this application on two computers to provide client-server architecture
	Connect to several remote computers simultaneously
	Ability to send data on certain event in UDP connection type (when block reaches certain size, on receiving special char and on certain timeouts)
	Renaming full port names in Device Manager
	Strict baudrate emulation option for virtual ports

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What customers say

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Xuehui Li, Product manager

It is just what we need! COM Port Redirector is bounding our hardware together. Now, we don’t have to pay the extra cost for maintenance and upgrading of our virtual COM drivers. It is the perfect solution for us!

Xuehui Li, Product manager
Steven Bradshaw, Vice President of CVARS (Canada)

I settled on Serial Port Redirector because it did everything I wanted it to do. It saves me a lot of time and headache.

Steven Bradshaw, Vice President of CVARS (Canada)
Claudio Corniani, Electronic Engineering Manager (Italy)

We choose COM Port Redirector product because of greater integration of virtualization of the serial ports, like physical devices.

Claudio Corniani, Electronic Engineering Manager (Italy)

Overall rating 4.7

based on 86 reviews

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COM Port Redirector for Windows

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Demo version limitations

• 14-day trial period

System Requirements

Windows 2000, Windows (32-bit and 64-bit): XP/2003/2008/ Vista/7/8/10, Windows Server 2012

Latest Update

Version 7.1.876 (29th Jan, 2017) Release notes

COM Port Redirector Redirect serial port data over Network

OEM For Developers

With COM Port Redirector you can

Redirect serial ports over TCP/IP network (Server)

Connect to serial ports remotely (Client)

Utilize UDP for data transfer

COM Port Redirector for Linux OS

COM Port Redirector full features list

COM Port Redirector for Windows

COM Port Redirector For Linux

COM Port Redirector
Redirect serial port data over Network