k3d vs srelens

k3d is a free, community-driven wrapper that runs k3s, Rancher Lab’s minimal Kubernetes distribution, inside Docker. It creates single-node and multi-node clusters for local Kubernetes development and can support hot-reloading, Tilt build-deploy-test workflows, and Drone CI service use. Docker is required, while kubectl is used to interact with clusters. For k3d v5.x.x, the overview specifies Docker v20.10.5 or later and runc v1.0.0-rc93 or later. A registries.yaml file configures registries, authentication, and certificates, and documentation covers local registries managed by k3d. Services can be exposed through Ingress or NodePort by mapping container ports to the host. Covered k3s integrations include CoreDNS, local-path-provisioner, Traefik, and the Klipper service load balancer. Installation options include release binaries, Homebrew, AUR, Chocolatey, Scoop, arkade, asdf, and Go. k3d runs on Linux, macOS, Windows, and self-hosted setups. It is not an official Rancher (SUSE) product.

srelens is a Kubernetes desktop workspace for browsing, inspecting, and operating clusters. It covers more than 40 resource kinds, including workloads, networking, storage, RBAC, admission, autoscaling, and custom resources. Investigation tools include live watches, log streaming, in-pod terminals, port forwarding, Helm release views, and a schema-aware YAML editor. CPU and memory metrics for nodes and pods come through Kubernetes Metrics Server. Users can scale or restart workloads and cordon, drain, or evict nodes; destructive actions require confirmation. The desktop app connects directly to Kubernetes API servers using local kubeconfig credentials, without an intermediary srelens cloud service. Available operations depend on the selected context’s credentials and RBAC permissions. Added kubeconfig files stay local, and pasted configs are stored in the application directory. Secret values are masked by default and revealed per key. The built-in MCP server connects to clients such as Claude Code, Claude Desktop, Cursor, and Codex. srelens is free, open source under the MIT license, and requires no account or license key.