Radar

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Radar is an open-source Kubernetes visibility tool that runs as a single binary on your laptop or in your cluster - no agents, no CRDs, and no account required. It connects to the Kubernetes API directly and opens a fast web UI in about 30 seconds, working against any conformant cluster (GKE, EKS, AKS, minikube, kind, k3s) and staying airgapped-ready with no external calls. Radar gives you real-time cluster topology and live service-traffic graphs, a resource browser with full CRD auto-discovery, log streaming and pod exec, container image filesystem inspection, a unified event-and-change timeline, and Helm release management (inspect, diff, upgrade, rollback). It includes first-class GitOps support for FluxCD and ArgoCD, OpenCost-powered cost insights, TLS certificate expiry monitoring, and a 31-check cluster audit across security, reliability, and efficiency with NSA/CISA and CIS framework labels and remediation guidance. A built-in MCP server lets AI assistants like Claude, Cursor, and Copilot query your cluster through Radar using token-efficient, read-only-by-default tools. Radar Cloud is the hosted tier for teams. It runs the same open-source engine as an agent in your clusters and adds a multi-tenant control plane: all clusters behind one URL, fleet-wide views (audit failures, package/version drift, expiring certs, cross-cluster resource search), centralized SSO via WorkOS (Google, passkey, Okta, SAML), organizations and roles, invitations, an audit log with CSV export, and Slack/webhook notifications. Because the engine is identical and Kubernetes stays the source of truth, there's no proprietary data format and no lock-in. Radar OSS is free forever under Apache 2.0; Radar Cloud offers a free tier up to 3 clusters plus Team and Enterprise plans.