Docker Swarm vs K3s

Is K3s a good alternative to Docker Swarm? Here’s what you need to know.

K3s

Free

Lightweight Kubernetes by Rancher. Perfect for edge and IoT.

K3s is a lightweight, certified Kubernetes distribution by Rancher. Single binary under 100MB, designed for resource-constrained environments. Perfect for edge computing, IoT, CI/CD, and development.

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Why switch from Docker Swarm?

Indie pricing — no enterprise markup or per-seat fees
Direct maker support — talk to the person who built it
Transparent & open — many indie tools are open-source
No vendor lock-in — own your data, export anytime

Building an alternative to Docker Swarm?

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