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A Killer Shell alternative
Live cluster in the browser. Four 30-minute sections. One mock is free. An alternative to Killer Shell and KillerCoda — not a copy of the official exam desktop.
| Killer Shell | KubeLab | |
|---|---|---|
| Cluster | Remote desktop | Browser: kubectl and helm |
| Free start | 3 preview questions | One mock, 16 questions |
| Timer | One 2-hour block | Four 30-minute sections |
| Retakes | Usually two sessions | Unlimited (paid mocks while subscribed) |
| Scoring | Automatic score + solutions after the sit | Live rubric on the cluster |
| Flashcards | Separate product | Free, in the same account |
| Price | One-off, two sits | €15/month, cancel anytime |
Killer Shell, KillerCoda, and Alta3 helped me start. This page is not a dump on them. They copy the exam desktop on purpose. That is a valid choice. It is not the one KubeLab makes.
The official CKA and CKAD UI is a remote desktop. You will sit it once, on the day. Practicing inside a copy of that UI trains patience and lag as much as kubectl. I needed something I could fail on quickly and restart.
KubeLab gives you a fresh isolated Kubernetes cluster in the browser. kubectl and helm, no local install. Four 30-minute sections, live scoring, 70% to unlock the next. One mock stays free, retakes included. Subscribe for the other eight.
Same kind of work as exam day: weighted tasks on a live cluster. Not the official exam, not a PSI desktop. Practice the skill somewhere light. The desktop fight can wait for the real sitting.
Is KubeLab a Killer Shell alternative?
If you want a live Kubernetes cluster and timed CKA or CKAD tasks, yes. If you want a copy of the official remote-desktop exam UI, no — that is what Killer Shell is for. KubeLab is the browser-terminal version: 30-minute sections, live scoring, one mock free.
Is KubeLab like KillerCoda?
KubeLab is mostly timed CKA and CKAD mock exams on an isolated cluster, plus two focused scenario labs (Helm, Kustomize). KillerCoda is a broad catalog of labs.
Should I practice in a copy of the exam UI?
You will sit that UI once. The rest of the time you need to iterate. Lag and a remote desktop are not the skill. Get fast at the work in a light environment, then spend your patience on exam day.
What is free?
A free account opens one full mock (16 questions, four 30-minute sections) plus flashcards and the YAML reference. The other eight mocks, CKAD and CKA, are the subscription.