YAML to JSON Converter
Convert YAML to JSON or JSON to YAML instantly. Your data stays in your browser.
Converter
Frequently Asked Questions
What is the difference between YAML and JSON?
YAML is a human-friendly data format that uses indentation instead of braces and quotes. JSON is stricter and widely used in APIs. They represent the same data structures — this tool converts between them losslessly.
Is my data uploaded to a server?
No. This converter runs entirely in your browser using the js-yaml library. Your data is processed locally and never sent anywhere.
Does it support anchors, aliases, and multi-line strings?
Yes, the converter supports standard YAML features including anchors (&), aliases (*), multi-line strings, and nested structures. JSON output is always valid JSON you can use in any API.
Can I convert large YAML files?
Yes, within browser memory limits. For very large files, the conversion may take a moment, but there are no file size limits or upload requirements.