YAML Validator
Validate your YAML for correct syntax and structure quickly and easily. Ensure your configuration files and data are well-formed with our free online tool.
Enter your YAML or upload a file (.yaml, .yml - Max size: 2MB)
How to Use Our YAML Validator
Enter or Upload YAML
Paste your YAML code into the input area or upload a YAML file (.yaml, .yml) (up to 2MB).
Validate
Click Validate to check your YAML syntax and structure.
Review Results
View detailed validation messages for your YAML input.
Features
YAML Syntax Checking
Validate YAML against standard syntax rules (indentation, colons, etc.).
File Upload
Upload YAML files (.yaml, .yml) up to 2MB for quick validation.
Error Highlighting (via messages)
Get clear error messages indicating the location and nature of syntax problems.
Basic Structural Validation
Ensures basic YAML structure is correct based on js-yaml parsing.
Popular Use Cases
Configuration Files
Validate configuration files (e.g., for Docker, Kubernetes, CI/CD) before use.
Data Serialization
Ensure YAML data for serialization or inter-process communication is valid.
Debugging YAML
Quickly identify and fix syntax errors in YAML documents.