OpenELB review
A focused, free load balancer for self-hosted Kubernetes and K3s clusters.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
OpenELB is an open-source load balancer for exposing Kubernetes LoadBalancer services in bare-metal, edge, virtualization, and on-premises environments. It is aimed at teams running Kubernetes or K3s themselves, particularly where a vendor-hosted load-balancing service is not part of the deployment model. The project runs within a Kubernetes environment and supports Linux and self-hosted platforms. Its main operating modes are BGP and Layer 2, with ECMP routing and load balancing for traffic distribution.
OpenELB is available as a free open-source product rather than a managed service. Installation uses a Helm Chart, while BGP settings can be defined through Kubernetes custom resources. IP address pool management is included, giving operators a way to assign addresses for LoadBalancer services within their cluster environment. Its listed integrations include Kubernetes, K3s, KubeSphere, and Helm, making the fit clearest for teams already working within that ecosystem. The deployment model also keeps the load balancer close to the cluster rather than placing it behind a separate hosted control plane.
The product's scope is focused on core load balancing for self-hosted Kubernetes. That makes it a practical match for simple Kubernetes and K3s clusters that need BGP, Layer 2, ECMP, IP pools, and Helm-based deployment. It is less suitable for organizations seeking a vendor-managed service or a broader platform with capabilities beyond the listed Kubernetes load-balancing functions. The CNCF lists OpenELB at the Archived maturity level as of May 22, 2025, which is an important consideration for teams evaluating long-term project fit. Choose OpenELB for a focused open-source deployment; consider another option when managed operations or wider feature coverage is required.
OpenELB pros and cons
- Where it wins
- Supports BGP, Layer 2, and ECMP load-balancing modes
- Manages IP address pools for Kubernetes LoadBalancer services
- Installs through Helm and configures BGP with custom resources
- Where it doesn't
- Runs inside self-hosted Kubernetes rather than as a managed service
- Platform support is focused on Linux and self-hosted environments
- Maturity is listed as Archived as of May 22, 2025
OpenELB fact sheet, pricing and score →
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