YAML Validator
Validate YAML syntax, detect indentation errors, and inspect parsed structures with instant error feedback.
About YAML Validator
YAML is widely used for Kubernetes manifests, GitHub Actions workflows, Docker Compose, and Ansible playbooks, but subtle indentation issues can break entire deployment pipelines. The OpsKitTools YAML Validator inspects your YAML in real-time, pointing out syntax errors, duplicate keys, and invalid tab characters before you commit your code.
How to Use This Tool
- Paste your YAML code or manifest into the editor.
- The validator checks the syntax automatically as you type or click 'Validate YAML'.
- If valid, view the parsed data tree representation to confirm your hierarchy.
- If an error occurs, review the line and column markers provided in the error card.
Practical Examples & Use Cases
Detecting Tab Indentation in YAML
server: port: 8080 # Tab used instead of spaces
The YAML standard strictly forbids TAB characters for indentation. Our validator flags this instantly with the exact line number.
Frequently Asked Questions
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