YAML Tools
Kubernetes Manifest Validator
Validate Kubernetes YAML manifests for common structural errors.
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What is K8s Validator?
A structural validator for Kubernetes YAML: it checks required fields (apiVersion, kind, metadata.name) and flags kinds or API versions outside the common set.
How it works
Each document is parsed with js-yaml and checked against bundled lists of common kinds and API versions; custom resources trigger warnings, not errors.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.
Frequently asked questions
Can this replace kubectl dry-run?
No. This is a fast local structural check; the cluster's API server (kubectl apply --dry-run=server) is the authoritative validator.