No. 11 of 26 ·Container Networking Software

Skupper

Windows · Mac · Linux · Self-hosted · API

Freedom report

Two barsScore 5.6

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

Skupper is ranked #11 of 26 in container networking software on Freedom251. It runs on API, Linux, macOS, Self-hosted, Windows.

Compared on container networking software

CNI plugin: No
Network policies: Yes
Egress control: Yes
Multi-cluster networking: Yes
Encryption in transit: Yes
Supported platforms: Kubernetes, Docker, Podman, Linux, virtual machines, bare metal

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The record

Product: Skupper is an application interconnect for building private networks across multiple sites and platforms.
Network model: It operates at the application layer over existing IP networks, connecting services across network boundaries without VPNs or special firewall rules.
Platforms: Skupper works on Kubernetes, Docker, Podman, and Linux.
Isolation: Skupper creates isolated application-focused networks with logical service addresses.
Use cases: The site lists remote resource access, platform migration, application resiliency, and highly distributed applications as use cases.
Security: Skupper secures router connections with mutual TLS using a private, dedicated certificate authority, and uniquely identifies each router with its own certificate.
Exposure: The product page states that application services are never exposed on the public internet.
Connectivity: Skupper forwards local service traffic to remote clusters through a secure virtual application network.
Load balancing: Skupper balances new TCP connections across workloads in distinct sites and reroutes traffic when a workload becomes unavailable.
Load balancing strategies: Multi-key listeners support weighted distribution and priority-based failover across routing keys.
Failover limit: Skupper does not provide orchestrated failover for stateful applications that require control over traffic redirection order; that orchestration must be implemented separately.
Deployment: On Kubernetes, the controller can be installed using YAML, Helm charts, or an Operator; local-system sites require the CLI.
API: The site shows a declarative API with Site, Listener, and Connector resources for defining sites and service exposure.
License: The site states that all Skupper code and documentation are licensed under Apache License version 2.0.

Where it ranks on Freedom251

Best Container Networking Software in 2026#11 of 26

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Sources

skupper.io· checked 4 Oct 2026
skupper.io/docs/overview/security.html· checked 4 Oct 2026
skupper.io/docs/overview/connectivity.html· checked 4 Oct 2026
skupper.io/docs/overview/load-balancing.html· checked 4 Oct 2026
skupper.io/docs/install/index.html· checked 4 Oct 2026
skupper.io/docs/overview/routing.html· checked 4 Oct 2026
skupper.io/docs/index.html· checked 4 Oct 2026
skupper.io/community/index.html· checked 4 Oct 2026
skupper.io/releases/index.html· checked 4 Oct 2026