Node-RED
mediumFlow-based programming tool for wiring together hardware devices, APIs, and online services.
0.5 GB RAM Active Apache-2.0
Pros
- Visual flow editor is intuitive
- Huge library of community nodes
- Great for IoT and API integration
- Good MQTT support
Cons
- JavaScript-based flows can become spaghetti
- Debugging complex flows is difficult
- Security requires manual configuration
- Can be unstable with too many community nodes
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