WebSocket-Node

A pure JavaScript implementation of the WebSocket protocol (RFC 6455) for Node.js, supporting protocol versions 8 and 13. Current stable version is 1.0.8, released in 2012. The library includes both client and server implementations. Key differentiators: native modules are optional (fallback to JS), supports Autobahn test suite, and is one of the fastest WebSocket libraries for Node.js. Note: This package was originally published as non-native-websocket but is the precursor to the widely-used 'websocket' npm package by the same author.