OPC Software Solutions - Free & Paid Utilities
OPC Data Logger
OPC bidirectional connection

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It allows you to create bidirectional bridges between OPC DA, OPC DA, SQL, and MQTT in any combinations. For example, OPC-MQTTT, OPC-SQL.
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OPC HTTP Gateway
OPC-HTTP Gateway - easy-to-use and secure bridge between your web server pages and OPC servers
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File OPC Server
File OPC Server - easily create an OPC server and use it in a system that doesn't support the OPC functionality
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OPC Scada Viewer
OPC Scada Viewer - displays and visualizes OPC data it in real-time with help of various indicators.
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OPC Server Simulator
OPC Server Simulator - allows testing your OPC applications with this free and simple OPC server
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