Kubernetes YAML Validator

Validate Kubernetes manifests, deployments, and services against schemas.

✅ Success

Valid Kubernetes YAML structure.

Parsed 1 document(s).

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-app-container
        image: nginx:latest
        ports:
        - containerPort: 80

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-app-container
        image: nginx:latest
        ports:
        - containerPort: 80

How the K8s YAML Validator Works

This tool parses your YAML instantly in the browser to ensure it is structurally valid before you try to kubectl apply it to your cluster.

It catches common errors such as improper indentation, duplicate dictionary keys, or missing Kubernetes fields like apiVersion and kind. Because it uses lightweight structural validation, it works entirely offline and protects your secrets from leaving your browser.

How the K8s YAML Validator Works

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