A clean, easy-to-use Modbus master tool that lets you connect to any slave device and inspect traffic in seconds — over TCP/IP, Serial, RTU or ASCII.
Cost / License
- Freemium
- Proprietary
Platforms
- Windows


ModPackQT is described as 'A complete Modbus Master and Slave simulator in your browser. Read, write, and simulate registers with RTU serial and TCP/IP support. Parse datasheets with AI. Visualize data in real time' and is an app. There are more than 10 alternatives to ModPackQT for Windows, Linux, Flathub and Flatpak. The best ModPackQT alternative is ModbusScope, which is both free and Open Source. Other great apps like ModPackQT are CAS Modbus Scanner, CoreBus, QModBus and Modbus Slave.
A clean, easy-to-use Modbus master tool that lets you connect to any slave device and inspect traffic in seconds — over TCP/IP, Serial, RTU or ASCII.

