JSON Schema will appear here...
What is YAML to JSON Schema Converter?
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. This tool converts YAML configuration files into JSON Schema definitions, enabling you to validate YAML data, generate documentation, and integrate with tools that require JSON Schema format.
How to Use
- Paste your YAML configuration into the left panel.
- Click "Convert" to generate the JSON Schema.
- Copy the output and use it for validation or documentation.
- The schema includes type inference, required fields, and nested structures.
Why Use This Tool?
Tips & Best Practices
- The schema represents the structure of your YAML, not its constraints
- Add additional validation keywords (minLength, pattern, enum) manually as needed
- Use the schema with validators like AJV, jsonschema, or online validators
- For arrays, the schema infers items from the first element only
Frequently Asked Questions
Why convert YAML to JSON Schema?
JSON Schema is a standard format for describing and validating JSON/YAML data structures. By converting your YAML to JSON Schema, you can: (1) Validate other YAML files against this schema, (2) Generate documentation automatically, (3) Enable IDE autocomplete and suggestions, (4) Use with configuration management tools that require JSON Schema.
How does type inference work?
The converter examines each value in your YAML and maps it to a JSON Schema type: strings become "string", integers become "integer", floats become "number", booleans become "boolean", null becomes "null", arrays become "array" with inferred items, and objects become "object" with nested properties.
Are all fields marked as required?
Yes, by default all fields present in the YAML are marked as required in the schema. This is a conservative approach. You should review the schema and remove fields from the "required" array if they are optional in your actual use case.