Node-RED vs Watchtower
A side-by-side comparison of two self-hosted automation & workflows options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Node-RED
Flow-based programming for event-driven apps
VS
Watchtower
Automatically update running Docker containers to new images
| Feature | Node-RED | Watchtower |
|---|---|---|
| Category | Automation & Workflows | Automation & Workflows |
| License | Apache-2.0 | Apache-2.0 |
| Language | JavaScript | Go |
| Setup difficulty | Easy | Easy |
| Min. RAM | 256 MB | 64 MB |
| Deployment | docker, bare-metal | docker |
| GitHub stars | ★ 23,501 | ★ 24,695 |
| First released | 2013 | 2017 |
| Replaces | Zapier | Renovate |
Why pick each one
Frequently asked questions
Is Node-RED or Watchtower better?
Neither is universally better. Watchtower has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Node-RED and Watchtower free and open-source?
Yes. Node-RED is licensed under Apache-2.0 and Watchtower under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Node-RED and Watchtower with Docker?
Node-RED: yes. Watchtower: yes.