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Free Tools Library
Free engineering utilities for testing, debugging and developing industrial and embedded systems.
Tool Catalog
ModMaster
A free Windows utility for testing, debugging, and learning Modbus master communication.
- Real-time Modbus RTU/TCP testing
- Master device simulation
- Industrial network diagnostics
- Serial communication analysis
- Supported protocols: Modbus RTU & Modbus TCP
ModSlave
A free Windows utility for simulating Modbus slave devices and testing industrial communication scenarios.
- Slave device simulation
- Industrial network testing
- Modbus function code testing
- Serial protocol analysis
- Supported protocols: Modbus RTU & Modbus TCP
HexSpy
A free technical utility for inspecting, converting, and analyzing hexadecimal data.
- Hexadecimal data inspection
- ASCII and binary conversion
- Memory analysis and debugging
- Protocol packet inspection
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