Platform Engineering
Helm Chart Validator
Paste Chart.yaml content (and optionally values.yaml) to validate required fields, SemVer version format, chart name conventions, and common YAML type coercion mistakes. Runs entirely in your browser.
No data is transmitted — everything runs locallyTool
About this tool
Helm Chart Validator
The Helm Chart Validator checks Chart.yaml for required fields, SemVer version format, naming conventions, and apiVersion correctness, with optional values.yaml syntax validation.
• Validate Chart.yaml before packaging a Helm chart to catch format errors early
• Debug a 'chart metadata (Chart.yaml) missing' or SemVer error from helm install
• Check appVersion is quoted as a string not interpreted as a number by YAML
• Verify chart name follows Helm's lowercase alphanumeric convention before publishing to a registry
Affiliate disclosure
Enterprise cloud infrastructure at scale. Google Cloud provides compute, Kubernetes, CI/CD, and developer tooling.
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External site · Independent provider · We may receive a commission · Not a recommendation
FAQ
What does this tool tell you?
The Helm Chart Validator checks Chart.yaml for required fields, SemVer version format, naming conventions, and apiVersion correctness, with optional values.yaml syntax validation.
What affects the result most?
Validates Chart.yaml required fields: apiVersion, name, version (SemVer). Checks values.yaml YAML syntax and detects null values that commonly cause template failures. Validates chart name format: lowercase alphanumeric and hyphens only, no underscores.
How should I use the result?
Treat the tool's output as a first-pass check, not a proof of correctness. A clean pass means no issues in the patterns this tool recognizes; a failure points to a specific problem you can investigate in your source. The underlying spec is the authoritative source for edge cases.
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