QCCOM
Free serial port monitor and UART terminal with auto baud rate
QCCOM is a fast, lightweight serial monitor and UART terminal for embedded and MCU developers. One portable exe (about 12 MB): no installer, no runtime, no admin rights.
Plug in a board and QCCOM finds the port (chip name and VID:PID) and detects the baud rate. Logs support UTF-8, GBK and HEX with Linux-terminal-style colors, timestamps, filtering, search and replay. A full VT100 terminal works with U-Boot and Linux shells.