YAML Validator
Client-Side SecureValidate YAML syntax, beautify indentation, and convert to JSON.
Is this tool broken?
Let us know if you found a bug or have a feature request.
Online YAML Validator & Formatter
The RootUtils YAML Validator helps you debug configuration files instantly. It parses your YAML (YAML Ain't Markup Language), checks for indentation errors, and automatically generates the equivalent JSON structure.
Why is my YAML invalid?
YAML is notorious for being strict about indentation. Unlike JSON or XML, you cannot use tabs; you must use spaces. A single misplaced space can break your entire file. Common errors include:
- Tabs vs Spaces: Using a tab character instead of 2 or 4 spaces.
- Colons: Forgetting the space after a colon (e.g.,
key:valueis invalid;key: valueis valid). - Improper Nesting: Child elements not being indented relative to their parent.
Who uses this tool?
This tool is essential for DevOps engineers and developers working with:
- Kubernetes (k8s): Deployment and Service manifests.
- GitHub Actions: CI/CD workflow files.
- Docker Compose: Container orchestration configs.
- Ansible: Automation playbooks.
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