4
PCWinTech.com
1,302
Freeware
Simple Port Tester is a neat application created to test TCP and UDP ports.
6
MiTeC
1,957
Freeware
It's a free multi-threaded Port, IP, NetBIOS and SNMP scanner.
8
DeviceLock, Inc.
284
Freeware
Active Ports monitors all open TCP and UDP ports on a local computer.
Virtual Serial Port Software
4
Shareware
Monitor, analyze and save logs from your system's RS232/422/485 serial COM ports.
2
Fluke Networks
37
Demo
The Switch Port Monitor utility provides visibility into network switches.
28
SimpleComTools
596
Freeware
UDP Test Tool is both a UDP packet generator and listening application.
IDT Corporation
68
Freeware
The dialer uses one local UDP port and one local TCP port.
1
DesertHail
ServerTalk lets you communicate directly with a TCP or UDP port on a server.
8
PTronix
46
Shareware
It is an advanced serial port test, simulation and data analysis tool.
36
Portforward
4,135
Freeware
PFPortChecker is a useful and reliable port test application.
dti Publishing
22
Freeware
Certblaster CompTIA Network+ (2009 Edition) - test preparation application.
SimpleComTools
9
Shareware
VirtualCOM-UDP is a software based UDP/COM Port Redirector solution.
4
AGG Software
688
Freeware
COM Port Stress Test is a tool for testing a COM or RS232 port (device).
37
NetworkActiv
84
Shareware
NetworkActiv AUTAPF is a UDP and TCP port forwarder.
40
Serial Port Tool
166
Shareware
Professional debug tool for serial port, TCP/IP, UDP, I2C, HTTP communication.
Stefan Zieker
78
Open source
Scriptable data terminal supporting serial port, UDP, TCP client/server, etc.