Cilium vs Flannel
| Cilium | Flannel | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | Linux, self-hosted | Linux, self-hosted, Windows |
| Free plan | — | Yes |
| CNI plugin | — | Yes |
| Network policies | — | Yes |
| Encryption in transit | — | Yes |
| Supported platforms | — | Kubernetes, Docker, Linux, Windows |
Both are listed in Best Container Networking Software. On The Geeks Club, Flannel scores higher on our published basis.