Tech riderRev. 20 Sept 2026
- 1Runs onAPI, Linux, Mac, self-hosted, Windows
- 2CostsNot stated by the maker
- 3CNI pluginNo
- 4Network policiesYes
- 5Egress controlYes
- 6Multi-cluster networkingYes
- 7Encryption in transitYes
- 8Supported platformsKubernetes, Docker, Podman, Linux, virtual machines, bare metal
7 lines stated Written from the maker's own pages: skupper.io

Overview
Skupper is ranked #7 of 26 in container networking software on Specifiction. It runs on API, Linux, macOS, Self-hosted, Windows.
Compared on container networking software
- CNI plugin
- Noskupper.io
- Network policies
- Yesskupper.io
- Egress control
- Yesskupper.io
- Multi-cluster networking
- Yesskupper.io
- Encryption in transit
- Yesskupper.io
- Supported platforms
- Kubernetes, Docker, Podman, Linux, virtual machines, bare metalskupper.io
Facts
- Product
- Skupper is an application interconnect for building private networks across multiple sites and platforms.skupper.io · 4 Oct 2026
- Network model
- It operates at the application layer over existing IP networks, connecting services across network boundaries without VPNs or special firewall rules.skupper.io · 4 Oct 2026
- Platforms
- Skupper works on Kubernetes, Docker, Podman, and Linux.skupper.io · 4 Oct 2026
- Isolation
- Skupper creates isolated application-focused networks with logical service addresses.skupper.io · 4 Oct 2026
- Use cases
- The site lists remote resource access, platform migration, application resiliency, and highly distributed applications as use cases.skupper.io · 4 Oct 2026
- Security
- Skupper secures router connections with mutual TLS using a private, dedicated certificate authority, and uniquely identifies each router with its own certificate.skupper.io · 4 Oct 2026
- Exposure
- The product page states that application services are never exposed on the public internet.skupper.io · 4 Oct 2026
- Connectivity
- Skupper forwards local service traffic to remote clusters through a secure virtual application network.skupper.io · 4 Oct 2026
- Load balancing
- Skupper balances new TCP connections across workloads in distinct sites and reroutes traffic when a workload becomes unavailable.skupper.io · 4 Oct 2026
- Load balancing strategies
- Multi-key listeners support weighted distribution and priority-based failover across routing keys.skupper.io · 4 Oct 2026
- Failover limit
- Skupper does not provide orchestrated failover for stateful applications that require control over traffic redirection order; that orchestration must be implemented separately.skupper.io · 4 Oct 2026
- Deployment
- On Kubernetes, the controller can be installed using YAML, Helm charts, or an Operator; local-system sites require the CLI.skupper.io · 4 Oct 2026
- API
- The site shows a declarative API with Site, Listener, and Connector resources for defining sites and service exposure.skupper.io · 4 Oct 2026
- License
- The site states that all Skupper code and documentation are licensed under Apache License version 2.0.skupper.io · 4 Oct 2026
- Routing
- Skupper supports cross-site routing and can distribute requests among service instances according to capacity and configured link costs.skupper.io · 4 Oct 2026
- Failover
- Skupper reroutes traffic to available sites when a workload becomes unavailable, but it does not orchestrate failover for stateful applications that need ordered redirection.skupper.io · 4 Oct 2026
- Management
- Sites and service exposure can be managed through a CLI or declarative YAML workflows.skupper.io · 4 Oct 2026
- Kubernetes installation
- The controller can be installed from YAML manifests, Helm charts, or an Operator; cluster-scoped installation requires cluster-admin access.skupper.io · 4 Oct 2026
- Support
- The project directs users to its Google Groups mailing list for questions and GitHub issues for bugs and enhancement requests.skupper.io · 4 Oct 2026
- Current release
- The releases page identifies Skupper 2.2.2, released on 17 August 2026, as the latest release.skupper.io · 4 Oct 2026
Best Skupper alternatives
See all 20 All accessCh 01 Canal Free planAPILinux Free to start7.2 All accessCh 02 Calico Open Source Free planLinuxself-hosted Free to start7.0 All accessCh 03 VMware Workstation Pro Free planLinuxself-hosted Free to start7.0 All accessCh 04 OVN-Kubernetes APILinux 6.9 All accessCh 05 CNI Plugins Free planLinuxWindows Free to start6.8 All accessCh 06 Flannel Free planLinuxself-hosted Free to start6.8
Where it ranks on Specifiction
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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

