Node-RED

About

Node-RED is an open-source, flow-based programming tool designed for visual programming. Originally developed by IBM, it is now maintained by the OpenJS Foundation. Node-RED allows users to connect hardware devices, APIs, and online services through a user-friendly, browser-based flow editor. This interface enables rapid prototyping and development by creating flows that represent sequences of tasks. Each node in a flow performs a specific function, such as data processing or communication protocols, allowing for the creation of complex workflows. Node-RED's extensibility is enhanced by its large community, which has contributed over 5,000 nodes. It supports various protocols like MQTT and HTTP, making it versatile for IoT applications, data visualization, and edge computing. Node-RED runs on Node.js, making it compatible with multiple platforms, including low-cost hardware like Raspberry Pi. Its low-code nature and active community support make it accessible to users of diverse backgrounds, from home automation to industrial control systems. Node-RED is free to use under the Apache License 2.0.