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Serial Port Splitter
Redirect and share serial data via real and virtual COM ports

Serial Port Splitter is a highly-functional software solution. It helps you split your real COM1 port into several virtual ports and establish a communication where the data coming into the split physical port will be sent to each of the virtual interfaces (COM2 and COM3) and programs connected to them. For example, if you need to send data from some sensor to two or more apps.

Here’s when Virtual Serial Port Driver PRO comes to the rescue

VSPD PRO gives you the way to create, edit, and delete an unlimited number of advanced serial port bundles with nothing more than a couple of clicks. Each bundle can contain as many physical or virtual serial ports you need.

Splitting and Joining COM ports

Your computer lacks physical serial ports

If there are not enough hardware COM ports in your PC, Virtual Serial Port Driver PRO will emulate physical port parameters and configuration and create virtual serial interfaces that will work with your serial programs and devices like physical communications ports.
Switching ports automatically

You need to join any number of physical communications ports

When you combine several physical COM ports into one virtual, it allows enabling the simultaneous communication between several serial devices and a single application. The software gives the way to redirect data from every joined physical port to a virtual serial interface.
Merging COM ports

You are looking for a way to share GPS data among multiple programs

What sets the software PRO edition apart from most similar solutions is the ability to reroute serial data flows within complex bundles of serial interfaces. You add the desired number of COM ports to the IN and OUT sides of your bundle, and multiple communications programs get the chance to transmit the received GPS signals to other serial apps.
Using loopback bundles for testing

You want to automatically access a free COM port

VSPD PRO offers the port switcher option which makes it possible to automatically provide your application with access to a COM port being currently unoccupied. To do this, you simply link several hardware ports to a virtual one and make sure your program is connected to this interface.
Using loopback bundles for testing

It's required to enable many-to-many port connection

Merging unlimited number of ports within one bundle is one of the newest features delivered by Virtual Serial Port Driver PRO. There are no IN and OUT sides, all ports (and, thus, programs and devices) can talk to all ports at the same time.
Using loopback bundles for testing

You need a new improved way to test your COM-port

From now on, you’ll have a loopback feature that helps you to create full-fledged virtual COM-port bundles with linked signal lines and each receiver channel directly connected to a transmitting channel. This makes testing your serial port’s data function easier than ever. Just send out data with different parameters and see what you’ll get at the output.
Creating bundle connections

You need to split one port to make it accessible to many apps at a time

If you want several applications to receive data from one hardware serial port simultaneously, you can split this port into several virtual interfaces using the dedicated software tool. By connecting to a virtual copy of the hardware port, each of the utilities will be able to access the same hardware port and a device inserted into it.

How to Split a Physical COM Port

In order to split your port, you'll need to follow a couple of simple steps:

Install Virtual Serial Port Driver PRO and start it on your computer.
Once you launched it, open the "Split" tab.
Select "Split real port" and choose a real port which will be split.
 Split real port
Then select virtual ports that will connect to the split real port within a single bundle. Click "Plus" every time you need to add a new virtual COM port to your bundle.
Also, you should select a virtual port which will be set as the main one and click "Set main".
Finally, click "Create" and your bundle of one real and several virtual ports will automatically appear in the Bundle tree.
Corporate offers and SDK

Corporate, SDK & Source code

Whether you're looking at redistributing our Serial port splitting technology as a part of your product or considering Virtual Serial Port Driver PRO software for an enterprise-wide deployment, we offer flexible and affordable corporate solutions designed to meet your needs.
Learn more about corporate solutions
What customers say
    Serial Port Splitter (Virtual Serial Port Driver PRO) helps Ham Radio members who have multiple transceivers, satellite antenna controllers, regular antenna rotators and run data modes and packages like Ham radio deluxe, TRX Manager, WX to IMG etc. For myself, I have been playing around trying to configure a couple of apps that run my YAESU FT-847 and West Mountain RIGblaster plus.
    Simon Davison, Engineering Lecturer, Ham Radio
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