Paste your YAML configuration into the input panel and run validation. Start with the small mapping below to check that keys, colons, and indentation are accepted. Read the reported location when parsing fails, then correct the original text and validate again. A successful result establishes YAML syntax, not whether Kubernetes, Docker Compose, or another application accepts the configuration's meaning.
Choose validation settings to match your intended checks rather than treating every warning as a parser error. You can paste text or upload one file at a time; the upload accepts 100MB. Browser memory still matters. Processing is local, while choosing Share or signing in to save sends the selected document to the service.
Input:
name: Ada
replicas: 2
Result: valid YAML mapping
The YAML parser reports syntax failures such as bad indentation, malformed mappings or sequences, and invalid quoting. Read the reported location and validate again after editing. Selected structure checks add diagnostics for supported configuration patterns. A successful result does not certify every application rule or guarantee that a deployment will succeed.
Yes! The validator fully supports multi-document YAML files separated by '---' delimiters. Each document is validated individually with separate error reporting, making it perfect for Kubernetes manifests, configuration files, and deployment scripts that contain multiple YAML documents in a single file.
Choose the configuration type for the corresponding structural checks, then inspect the reported issues. These built-in checks cover selected fields and patterns; they are not a complete replacement for official Kubernetes, Compose, or CI validation. Validate the final configuration with the exact application version and environment that will consume it.
Detailed error reports include exact line and column numbers, error type classification (syntax, structure, schema), contextual code snippets showing the problem area, clear explanations of what went wrong, and specific suggestions for fixing the issues. This comprehensive feedback helps you quickly identify and resolve YAML problems.
Upload one file of up to 100 MiB at a time. Browser memory can limit smaller documents, without any speed guarantee. Processing is local. Choosing Share uploads selected content for anyone with the link; signing in to save sends it to your account library. Review private configuration before using either action.