Serial Port Notifier (formerly Serial Port Monitor) sits in your notification tray and monitors the serial ports on your computer. When a port is added or removed, a notification is shown containing the port's COM port name, allowing you to easily keep track of what's been plugged in and out. Program launchers can be defined that allow programs to be quickly started using the selected serial port. Custom labels can also be added to ports to allow for easy identification.
Features
- Get notified when serial ports are added or removed.
- Quickly launch custom programs using the selected port.
- Add custom labels for easy identification.
Project Samples
Notification displayed when a serial port is plugged in
Right clicking on the notification icon brings up a menu listing all of the ports in the order they were plugged in
Settings page showing user-define launchers
Editing a custom launcher
A custom label can be added to a port for easy identification.
License
MIT LicenseFollow Serial Port Notifier
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User Reviews
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maxhayim Posted 2025年10月19日I’ve been using Serial Port Notifier for a while now and it’s proven to be an excellent tool for monitoring COM ports on a Windows system. It delivers just what it promises with a clean and intuitive interface, making it easy to keep track of serial port connections and activity without any fuss. What I like most: Straightforward setup — the program installs quickly and starts working right away. Real-time visibility of COM port changes, which is invaluable when debugging hardware or managing multiple serial devices. Lightweight and efficient: it doesn’t hog resources or complicate the workflow. Great reliability — I haven’t experienced crashes or odd behaviour, even when switching devices frequently. One or two minor improvements that could make it even better: A few additional customization options (such as notifications, logging features, or filtering by device type) would elevate its usefulness for more advanced workflows. Occasional updates would help ensure compatibility with the latest versions of Windows and newly-emerging serial hardware. Final verdict: If you’re working with serial equipment or need to monitor COM ports for debugging or development tasks, Serial Port Notifier really does the job well. It’s a solid choice for a free tool in its category. I’d happily recommend it and give it 5 out of 5 stars.
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microstar Posted 2021年12月17日Good tool for me to minitor serial COMs.