YAML Formatter / Validator
YAML (YAML Ain't Markup Language) is a human-readable data serialization format widely used for configuration files, CI/CD pipelines, Kubernetes manifests, and more. Proper formatting and validation ensure your YAML files are error-free before deployment.
This tool formats, validates, and converts YAML to JSON. It highlights syntax errors with line and column numbers so you can quickly fix issues in your configuration files.
How it works
YAML uses indentation-based structure with key-value pairs, lists (prefixed with -), and nested mappings. Proper indentation (typically 2 spaces) is critical for valid YAML.
Use cases
- Validating Kubernetes manifests and Helm charts
- Formatting CI/CD pipeline configurations (GitHub Actions, GitLab CI)
- Checking Docker Compose files for syntax errors
- Converting YAML configuration to JSON format