YAML to JSON Converter
Paste YAML and convert it to formatted JSON instantly
Frequently Asked Questions
What YAML features does this converter support? +
This converter supports key-value pairs, nested objects via indentation, arrays using dash syntax (- item), quoted and unquoted strings, numbers (integer and float), booleans (true/false, yes/no), null values (null, ~), inline arrays, inline objects, and multi-level nesting.
Does this tool use any external libraries? +
No. The YAML parser is built entirely in vanilla JavaScript with no dependencies. It runs 100% in your browser and does not load any external libraries or send data to any server.
How does the converter handle YAML indentation? +
The parser detects indentation levels to determine nesting. It supports any consistent number of spaces for indentation (2 spaces, 4 spaces, etc.). Tabs are not recommended in YAML and may cause errors.
What happens if my YAML has syntax errors? +
The tool will display a clear error message describing the problem. Common issues include inconsistent indentation, missing colons after keys, and mixing tabs with spaces.
Can this handle multi-document YAML files? +
The converter processes the first YAML document in the input. If your file contains multiple documents separated by ---, only the first document will be converted. Split them into separate conversions for best results.