Kubernetes YAML Validator
K8s YAML Validator
Validate Kubernetes manifests against built-in schema rules: required fields, apiVersion, container images, resource limits, liveness probes, and more. Supports 16 resource kinds. Also includes a Diff mode for semantically comparing two manifest versions.
Paste a Kubernetes YAML manifest and click Validate.
Validate Kubernetes manifests against built-in schema rules. Supports 18 resource kinds and --- multi-document files. Role/ClusterRole manifests are also checked for over-broad wildcard permissions and privilege-escalation combinations, and RoleBinding/ClusterRoleBinding manifests are checked for bindings to the built-in cluster-admin role.
K8s YAML Validator
Validate Kubernetes manifests against built-in schema rules: required fields, apiVersion, container images, resource limits, liveness probes, and more. Supports 16 resource kinds. Also includes a Diff mode for semantically comparing two manifest versions.
Common uses
- Validate a Deployment manifest for missing resource limits
- Check a Pod spec for missing liveness probes
- Compare two versions of a Deployment manifest
Also searched as
- kubernetes yaml validator online
- validate kubernetes manifest
- check deployment for missing resource limits
- kubernetes pod missing liveness probe
- compare two kubernetes manifests
- k8s yaml linter
- kubernetes manifest diff semantic
- validate k8s apiVersion and required fields
- kubernetes deployment yaml check container image
Frequently asked questions
How do I validate a Kubernetes manifest without kubectl?
Paste the YAML into the K8s YAML Validator. It checks required fields, apiVersion, container images, resource requests/limits and liveness/readiness probes against built-in rules in your browser.
Which Kubernetes resource kinds are supported?
The validator has built-in schemas for 18 resource kinds, including Deployments, Pods, Services, StatefulSets, Jobs, Ingresses and RBAC roles. Other kinds are flagged as unknown.
Can I compare two versions of a manifest?
Yes, the Diff tab compares two manifest versions semantically, reporting added, removed and changed fields by path rather than line by line.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.