Node‑RED is a low‑code, flow‑based visual programming tool that lets you wire together hardware, APIs, databases and services to build event‑driven integrations and dashboards easily.
Node‑RED is open‑source under the Apache 2.0 licence and free to use even commercially. The Apache License 2.0 is a permissive open‑source software licence that lets you freely use, modify, distribute the code (even commercially) while requiring attribution, license text inclusion, and granting patent rights
Under development