An honest comparison
Rubick vs k9s.
k9s is superb and you should probably have it installed either way. The real question is whether your problem today needs a terminal or a screen with history on it.
Pick k9s if
- ·You are SSH-ed into a jump host and a terminal is all there is.
- ·Speed and muscle memory beat everything; k9s is instant and fully keyboard-driven.
- ·You want zero GUI anywhere in your workflow.
Pick Rubick if
- ·You want CPU and memory over time, not just the current number.
- ·You are walking a broken Ingress path and want the chain drawn with the break named.
- ·You want cert expiry, Argo/Flux ownership and cloud node pools read for you, not hunted through YAML.
| Rubick | k9s | |
|---|---|---|
| License | GPL-3.0-or-later | Apache-2.0 |
| Price | free | free |
| Account | none | none |
| Runs as | desktop app (macOS, Windows, Linux) | terminal UI, anywhere a terminal runs |
| Built on | Tauri (Rust) | Go |
| Metrics | history over time via Prometheus | live values via metrics-server |
| Works over SSH | no | yes, that is the point |
This is not really a versus. k9s lives in the terminal, Rubick lives on a screen; most people who like one end up using both.
Last verified August 2026. Facts age; when in doubt, trust their site over this table.