YAML ↔ JSON Converter
Convert between YAML and JSON formats instantly. Validate YAML syntax and transform data between formats.
Frequently Asked Questions
What is the difference between YAML and JSON?
YAML (YAML Ain't Markup Language) uses indentation for structure and is more human-readable, while JSON (JavaScript Object Notation) uses braces and brackets. YAML supports comments and multi-line strings natively, while JSON is more widely used in APIs and web applications.
Can I convert complex nested structures?
Yes, the converter handles deeply nested objects, arrays, mixed types, and all standard YAML/JSON data types including strings, numbers, booleans, null values, and dates.
Does the converter validate my input?
Yes, if your YAML or JSON has syntax errors, the tool will show a detailed error message pointing to the issue. This makes it useful as a YAML/JSON validator as well.
What JSON indentation options are available?
When converting to JSON, you can choose between 2 spaces, 4 spaces, or tab characters for indentation. YAML output uses the standard 2-space indentation.
Is this tool free to use?
Yes, this YAML-JSON converter is completely free with no signup required. All conversion happens in your browser so your data never leaves your device.