Colima vs Kubus

Colima runs container environments on macOS and Linux, with Docker, containerd, Kubernetes and Incus runtime options. Docker compatibility is intended to let existing Docker workflows and tools continue without changes; containerd users can use nerdctl for a Docker-like command line. It can launch a local, single-node k3s cluster, and users can select an exact K3s version. CPU, memory and disk allocations are configurable, and multiple isolated instances can run with different settings. Colima also documents GPU-accelerated AI workloads on Apple Silicon using Krunkit, with model runners supporting Docker AI Registry and HuggingFace; Ramalama also supports Ollama registries. Those workloads require Apple Silicon, macOS 13 or newer, and Krunkit, with at least 8 GB of RAM recommended. The AI containers are isolated from the host filesystem, other containers and network access unless network access is enabled. Colima is free and MIT-licensed, with installation options for macOS and Linux. Incus virtual machines require m3 or newer Apple Silicon.

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.