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Serial Port Splitter
Split serial ports and share serial data flows

RS232 Splitter is a versatile application that allows you to split one port among several applications in such way that they can all get the same data at the same time. Each application will communicate with a separate virtual port, while in reality they'll work with the same real port at a time. It is also possible to join several ports into one, redirect data from one port to another, create complex bundles. Serial Splitter works great with real COM ports as well as with virtual ones.

With new version Serial Port Splitter has added the switcher option to its baggage. Switcher allows to automatically determine the free port in the list of specified COM ports and assign it to the application that needs to work with it now. Moreover now Serial Splitter logs all events, so you can easily see which application opened the port and what parameters were used.

With Serial Port Splitter you can create

  • One-to-many ports connection

    With RS232 Splitter you can split one COM port into several virtual ones, which are exact copies of the original port in the system. For instance, Serial Splitter can split real COM1 into virtual COM2, COM3, COM4 ports.

    Alternatively you can share one real port with device connected to it (i.e. GPS-receiver) among many applications without splitting it to several different virtual COM ports.
  • Many-to-one ports connection

    Serial Port Splitter can join any number of COM ports into one virtual serial port, thus allowing information from several devices to be received by a single application connected to the port at the OUT side of the bundle
  • Many-to-many ports connection

    Serial Splitter and its easy-to-understand assisting charts let you arrange complex bundles of COM-ports. You will be able to establish a connection between any number of real and virtual serial ports in either incoming or outgoing direction. Besides serial port data transmission, Serial Splitter provides the option to set Main Port for each side (IN/OUT) to manage control lines of a corresponding serial port.
  • Ports switcher

    With switcher you can enhance the work with those application that can work with a limited quantity of ports only. Simply specify one virtual port in such application and create a switcher for this port in Serial Splitter, where add all COM ports you'll need (and you can assign the same name to all of them for more convenient usage). So the program works with any free port Serial Splitter assigns to it as if it were always the same port.

Thinking about integrating our functionality into your own industry-specific solution?

Eltima Port Virtualization Technology is just what you need. Thousands of successful companies worldwide have already experienced the undeniable benefits and advantages of powering their software and hardware products with our advanced technology.

Eltima Port Virtualization Technology

Full features list

Unique all-in-one functionality: split, join serial ports, redirect data
Share one real port among multiple applications
Create advanced ports bundles - combinations of real and virtual serial ports
Create as many virtual serial ports as you need
Full emulation of hardware control lines
Ports bundles are automatically configured every time you boot your PC, so you don't have to recreate them again
Serial ports are created and re-configured in real-time
Full support of wide range of GPS devices and software
Fully compatible with HyperThreaded and multi-processor systems
Bidirectional data transfer

Custom Software Development

Whether you’re looking at modifying functionality of our current software solutions or developing a new product from scratch, we can make it happen!

What customers say

  • By using Serial COM Port Splitter I am able to get what I want. I am applying this for use with navigation and aeronautic positional awareness.
    James Gilham

Overall rating 4.9
based on 91 reviews

Let's get started

Serial Port Splitter for Windows
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 5.0.125 (18th Sep, 2012) Release notes