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Tera Term (Pro) is a free software terminal emulator (communication program) for MS-Windows. It supports VT100 emulation, telnet connection, serial port connection, and so on. RealTerm is a terminal program specially designed for capturing, controlling and debugging binary and other difficult data streams.
Print raw (ZPL, ESC/P, FGL), HTML, PDF as well as communicate with USB, HID, and serial devices through a cross-platform browser plugin. dterm is a simple terminal emulator, which doesn’t actually emulate any particular terminal. The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. Minicom is a menu driven communications program. It emulates ANSI and VT102 terminals. It has a dialing directory and auto zmodem download. QModBus is a free Qt-based implementation of a ModBus master application. A graphical user interface allows easy communication with ModBus slaves over serial line interface. QModBus also includes a bus monitor for examining all traffic on the bus. CoolTerm is a simple serial port terminal application (no terminal emulation) that is geared towards hobbyists and professionals with a need to exchange data with hardware... VSPE is intended to help software engineers and developers to create/debug/test applications that use serial ports. It is able to create various virtual devices to transmit/receive data. Free Virtual Serial Ports is a Windows user-mode application, which allows you to create software virtual serial ports and emulate physical serial ports behavior. Generates WITS (Wellsite Information Transfer Specification) data over serial or TCP/IP for the purpose of allowing users to perform testing and validation using the WITS specification . picocom is a minimal dumb-terminal emulation program. It is ideal for embedded systems since its memory footprint is minimal (less than 20K, when stripped). Eltima Serial Port Monitor displays, logs and analyzes all serial data exchange between serial devices and any application. Gtkterm is a simple GTK+ terminal used to communicate with a serial port. It is has fewer features than minicom, but is designed to be as easy to use as possible. Terminal is a simple serial port (COM) terminal emulation program.