ctlptl vs Kubus

ctlptl is a free command-line tool for declaratively configuring local Kubernetes clusters with YAML. Its main commands show running clusters, create them, apply configuration, and delete clusters along with their state. The project lists Docker Desktop, KIND, Minikube, and K3D, with registry support for KIND, Minikube, and K3D. Configuration can allocate CPUs and set up local registries; Minikube supports per-cluster Kubernetes version selection. ctlptl can also create a cluster on a remote Docker host, a capability the project describes for CI environments. Installation options include Homebrew for macOS and Linux, Scoop for Windows, Go install, Docker, and prebuilt release binaries. A Docker image containing recent kind and ctlptl versions is offered for CI. The project supports macOS, Linux, and Windows and is licensed under Apache License 2.0. Its README calls it a work in progress and says it is not meant for remote clusters or remote development sandboxes. Usage statistics are anonymized, with an opt-out command available.

Kubus is a free, open-source Kubernetes GUI that runs locally and brings cluster resources, logs, shells, port forwards, metrics, and Helm into one desktop app. It can combine selected kubeconfig contexts in merged lists, with a cluster column identifying each resource's context. Alongside built-in Kubernetes resource types, it discovers custom resource definitions live. For troubleshooting, Kubus streams logs from multiple pods and provides container terminals, ephemeral debug containers, and node shells. Users can browse, install, upgrade, roll back, and uninstall Helm releases without the Helm binary. Kubus uses existing kubeconfig credentials and supports GKE, EKS, and AKS through their credential plugins; connections can also use SSH jump hosts or SOCKS and HTTP proxies. The local server binds to 127.0.0.1, and the maker says there is no cloud, account, or telemetry; Secret values are redacted by default. It is available on Windows, macOS, and Linux, though new releases no longer support Intel Macs. Metrics and health charts require metrics-server in the cluster.