OPC UA Client for Node.js

node-opcua-client is the client-side module of a comprehensive OPC UA SDK written entirely in JavaScript and Node.js, providing robust connectivity to OPC UA servers. Currently at version 2.169.0, the library exhibits a rapid and consistent release cadence, often featuring multiple patch and minor releases per month to introduce new features, performance enhancements, and bug fixes. Key differentiators include its pure Node.js implementation, broad support for various OPC UA specifications (including OPC UA 1.05 compliance), and a strong emphasis on performance through optimizations in data type handling, transport, and secure channel operations. The project maintains an open-source MIT license but offers commercial support, advanced documentation, and value-added extensions through Sterfive SAS, catering to professional and industrial applications.