Loopze vs Node-RED
A direct, technical comparison for engineers choosing a visual flow runtime for the industrial edge. No fluff — just where the two tools differ and why it matters.
TL;DR
Pick Loopze if you want a single-binary deployment, native industrial protocols (MQTT, Modbus, OPC-UA), multi-core parallelism and a tight, small surface area. Pick Node-RED if you need the broad community ecosystem (smart-home integrations, hundreds of niche nodes) and you are happy operating a Node.js runtime.
Feature Comparison
| Dimension | Loopze | Node-RED |
|---|---|---|
| Language & runtime | Go, statically linked | Node.js (V8) |
| Distribution | Single ~5 MB binary | Node.js install + npm tree |
| Concurrency | Goroutine per node, all CPU cores | Single event loop, async I/O |
| MQTT | Native, in runtime | Built-in (core node) |
| Modbus TCP / RTU | Native, in runtime | Community npm package |
| OPC-UA | Native, in runtime | Community npm package |
| Embedded broker | NATS, built-in | None — external Mosquitto/etc. |
| Transform languages | Go, JavaScript, expr-lang | JavaScript |
| Memory footprint | ~20–40 MB resident | ~80–150 MB resident |
| Cold start | < 200 ms | 2–5 s (Node + plugin load) |
| Community nodes | Small, industrial focus | ~4,000+ npm packages |
| License | AGPL-3.0 (+ commercial) | Apache-2.0 |
| Maturity | v0.4.x — young, focused | v4.x — mature, broad |
Footprint and cold-start numbers are typical observed values on Linux/amd64. Actual figures depend on flow size and installed nodes.
Where each tool wins
Loopze wins on…
- Deployment. One binary you can scp onto an edge gateway. No Node.js, no npm install, no dependency drift over time.
- Industrial protocols. MQTT, Modbus and OPC-UA are first-class citizens implemented in Go inside the runtime — same back-pressure, reconnect and error semantics across all three.
- Concurrency. Goroutine-per-node lets a 1 kHz MQTT pipeline run in parallel with a 200 ms Modbus poll without either blocking the other.
- Footprint. Smaller RAM, faster cold start — matters on ARM gateways and industrial PCs with constrained resources.
- Transform languages. Drop into Go for hot paths, expr-lang for one-liners, JavaScript for the everyday case.
Node-RED wins on…
- Ecosystem breadth. Thousands of community nodes covering smart home, niche cloud SDKs, machine learning frameworks, etc.
- Maturity. Years of production use, well-known patterns, large body of tutorials and Stack Overflow answers.
- Commercial backing. OpenJS Foundation governance, IBM heritage, commercial support partners.
- Browser-only environments. Some integrations and contexts (FRED, embedded inside IBM Cloud Pak) assume the Node-RED runtime specifically.
Decision guide
Choose Loopze if you are building industrial flows where MQTT/Modbus/OPC-UA performance and reliability matter, you deploy to many edge devices, and you want one binary to manage.
Stick with Node-RED if your flows depend on community nodes that have no equivalent elsewhere, your team has existing Node-RED investment, or you need a tool that has been battle-tested for a decade.
Frequently Asked Questions
What is the main difference between Loopze and Node-RED?
Runtime and concurrency model. Loopze is a single Go binary with goroutine-per-node parallelism. Node-RED is a Node.js app with a single event loop. They share the visual-flow concept but differ on deployment, performance characteristics and industrial-protocol depth.
Is Loopze faster than Node-RED?
For multi-node flows on multi-core hardware: yes, often substantially. Goroutines use all available cores; the Node.js event loop does not. For trivial pass-through flows the difference is small.
Can I migrate flows from Node-RED to Loopze?
Not automatically — flow JSON is not import-compatible. Engineers familiar with Node-RED rebuild flows quickly in Loopze, but there is no one-click migration.
Which one should I choose for a Raspberry Pi or edge gateway?
Loopze, if you want zero install ceremony and a smaller footprint. Node-RED, if you depend on community nodes that only exist there.
Are both open source?
Yes. Node-RED is Apache-2.0. Loopze is AGPL-3.0 with a commercial option for closed-source embedding.
Related
Try Loopze
curl -L loopze.dev/install | sh
loopze --port 1880Node-RED is a registered trademark of OpenJS Foundation. This page is an independent technical comparison written by the Loopze team. Figures cited reflect typical observations and may differ in your environment.