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Convert YAML configuration files to JSON format. Supports nested objects, arrays, and basic data types.
What is YAML to JSON Converter?
YAML (YAML Ain't Markup Language) is a human-readable configuration format using indentation and key: value syntax. JSON is machine-optimized with braces and quotes. Both represent the same data structures (objects, arrays, values). This converter transforms YAML configuration files into JSON format for APIs, databases, and programs that require JSON input while preserving all nested structures.
How to Use
- Paste YAML content in the input area
- Click 'Convert' to parse and transform
- Review the formatted JSON output
- Copy JSON for use in your application
Why Use This Tool?
Tips & Best Practices
- YAML uses indentation for nesting
- Arrays start with - dash
- Strings can be quoted or unquoted
- Numbers auto-detected from format
- true/false become JSON booleans
- null or ~ become JSON null
Frequently Asked Questions
What YAML features are supported?
Key-value pairs, nested objects (via indentation), arrays (with -), strings (quoted/unquoted), numbers, booleans (true/false), and null values. Advanced YAML features like anchors, aliases, multi-line strings, and complex types may not convert correctly.
Why convert YAML to JSON?
Many APIs and databases require JSON input. Configuration files written in YAML (easier for humans) need conversion for systems that only accept JSON. Docker configs, Kubernetes manifests, and CI files often need JSON versions for certain tools.
What about YAML anchors and aliases?
This simplified converter doesn't handle YAML anchors (&anchor) and aliases (*alias) for reusable content. Complex YAML with references needs specialized parsers. For simple configs without anchors, conversion works correctly.
Can I convert JSON to YAML?
This tool only converts YAML to JSON. For JSON to YAML, you'd reverse the process - simpler since JSON's structure is explicit. Consider using other tools for JSON-to-YAML when you need human-readable configs from JSON data.
How are arrays represented?
YAML arrays use - dash prefix. Each - item becomes an array element in JSON. Nested arrays work with proper indentation. Example: items: - apple - banana becomes {"items": ["apple", "banana"]}.
What if conversion fails?
Common issues: incorrect indentation, missing colons, invalid value formats. Check YAML syntax: keys need colons, nested content must indent consistently (same spaces per level). Use YAML validators to debug before conversion.