Best Calico Open Source Alternatives in 2026
Updated
20 apps from container networking software ranked against Calico Open Source on the same published basis.
- 1Calico Open Source vs Cilium
- 3Calico Open Source vs Antrea
- 4Calico Open Source vs Kube-OVN
- 5Calico Open Source vs OVN-Kubernetes
- 6Calico Open Source vs Flannel
- 7Calico Open Source vs Spiderpool
- 8Calico Open Source vs Calico Enterprise
- 9Calico Open Source vs Submariner
- 10Calico Open Source vs Amazon VPC CNI
- 11Calico Open Source vs Azure CNI
- 12Calico Open Source vs Kube-router
- 13Calico Open Source vs CNI Plugins
- 14Calico Open Source vs Isovalent Enterprise for Cilium
- 15Calico Open Source vs Skupper
- 16Calico Open Source vs Terway
- 17Calico Open Source vs Aviatrix Kubernetes Firewall
- 18Calico Open Source vs DANM
- 19Calico Open Source vs Multus CNI
- 20Calico Open Source vs Liqo
- 21Calico Open Source vs Network Service Mesh
Calico Open Source alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Cilium | 8.0 | Free plan | Free | Linux, self-hosted |
| 3 | Antrea | 7.8 | Free plan | Free | API, Linux, self-hosted, Windows |
| 4 | Kube-OVN | 7.6 | Free plan | Free | API, Linux, self-hosted |
| 5 | OVN-Kubernetes | 7.4 | No | — | API, Linux, self-hosted, Windows |
| 6 | Flannel | 7.1 | Free plan | Free | Linux, self-hosted, Windows |
| 7 | Spiderpool | 7.0 | Free plan | Free | API, Linux, self-hosted |
| 8 | Calico Enterprise | 6.7 | No | — | Linux, self-hosted, Web, Windows |
| 9 | Submariner | 6.5 | No | — | self-hosted |
| 10 | Amazon VPC CNI | 6.4 | No | — | Linux, self-hosted, Windows |
| 11 | Azure CNI | 6.4 | No | — | Linux, Windows |
| 12 | Kube-router | 6.2 | No | — | Linux |
| 13 | CNI Plugins | 6.2 | Free plan | Free | Linux, Windows |
| 14 | Isovalent Enterprise for Cilium | 6.0 | No | — | — |
| 15 | Skupper | 6.0 | No | — | API, Linux, Mac, self-hosted, Windows |
| 16 | Terway | 6.0 | Free plan | Free | Linux, self-hosted |
| 17 | Aviatrix Kubernetes Firewall | 5.7 | No | — | Web |
| 18 | DANM | 5.7 | No | — | Linux |
| 19 | Multus CNI | 5.5 | No | — | Linux |
| 20 | Liqo | 5.4 | No | — | Linux, Mac, self-hosted, Windows |
| 21 | Network Service Mesh | 5.4 | No | — | — |
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Questions about Calico Open Source alternatives
What is the best alternative to Calico Open Source?
Cilium, number 1 in container networking software with a score of 8.0 out of 10. The others here: Antrea, Kube-OVN, OVN-Kubernetes and 16 more.
What is the best free alternative to Calico Open Source?
Cilium is the best-ranked alternative with a free plan. 7 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.