As of early 2026, licenses are typically , meaning you pay once for a specific major version and can use it indefinitely. License Quantity Price per License (USD) 1 to 2 Licenses $129.00 Individual engineers or small setups. 3 to 9 Licenses $119.00 Small teams or testing labs. 10+ Licenses $109.00 Large-scale industrial engineering departments.
: Ensure you have the newest installer from the ModbusTools Download section. modbus slave license key new
While ModbusTools offers a free 30-day evaluation period, it includes strict operational limits: As of early 2026, licenses are typically ,
: Using the software for commercial purposes after the 30-day period requires a paid registration to comply with international copyright laws. Pricing and License Types (2026) 10+ Licenses $109
Note: A single-user license allows one person to use the software on multiple computers, provided they are the only person using those installations. Where to Buy a New License Key
: If you also need a Master simulator, Simply Modbus offers bundled licenses for their Master, Slave, and TCP Client programs starting around $162.00 . How to Activate Your New Key
Price in USD: * 1 to 2 license: $ 129.00. * 3 to 9 licenses: $ 119.00 per license. * 10+ licenses: $ 109.00 per license. Modbus Tools FAQ - Modbus Tools