K3s vs Kubernetes
K3s
Lightweight Kubernetes for edge and IoT
Kubernetes
Container orchestration platform for production workloads
| Feature | K3s | Kubernetes |
|---|---|---|
| Category | DevOps & Infra | DevOps & Infra |
| Sub-category | Orchestration | Orchestration |
| Maturity | stable | mature |
| Complexity | intermediate | advanced |
| Performance tier | medium | medium |
| License | Apache-2.0 | Apache-2.0 |
| License type | permissive | permissive |
| Pricing | fully free | fully free |
| GitHub stars | 29.0K | 114.0K |
| Contributors | 300 | 4.0K |
| Commit frequency | weekly | weekly |
| Plugin ecosystem | none | none |
| Docs quality | good | good |
| Backing org | SUSE / Rancher | CNCF |
| Funding model | corporate | foundation |
| Min RAM | 512 MB | 2 GB |
| Min CPU cores | 1 | 2 |
| Scaling pattern | distributed | distributed |
| Self-hostable | Yes | Yes |
| K8s native | Yes | Yes |
| Offline capable | No | No |
| Vendor lock-in | none | none |
| Languages | Go | Go |
| API type | REST | REST |
| Protocols | HTTP | HTTP |
| Deployment | docker, binary | docker, binary |
| SDK languages | — | — |
| Team size fit | solo, small, medium | medium, enterprise |
| First release | 2020 | 2020 |
| Latest version | — | — |
When to use K3s
- ✓ Primary: edge-kubernetes
- ✓ Primary: resource-constrained-clusters
- ✓ Primary: development-clusters
When to use Kubernetes
- ✓ Primary: container-orchestration
- ✓ Primary: auto-scaling
- ✓ Primary: service-mesh
K3s anti-patterns
- ✕ Not all K8s features available
- ✕ SQLite backend has limitations
- ✕ Less community tooling than full K8s
Kubernetes anti-patterns
- ✕ Complex for small teams
- ✕ Overkill for simple deployments
- ✕ Steep learning curve
- ✕ Resource-heavy control plane