JSON ↔ YAML Converter
Convert between JSON and YAML formats instantly with our free online converter. Supports bidirectional conversion with customizable indentation. Perfect for developers working with configuration files, APIs, and data interchange.
All conversions happen in your browser. No data is sent to any server.
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How to Use
- 1 Select your conversion mode — Choose JSON → YAML to convert JSON to YAML, or YAML → JSON for the reverse conversion.
- 2 Enter your input data — Paste or type your JSON or YAML content in the input field.
- 3 Adjust indentation — Select 2 or 4 spaces for output indentation based on your preference.
- 4 Copy or download the result — Use the Copy button to copy to clipboard, or Download to save as a file.
Frequently Asked Questions
What's the difference between JSON and YAML?
JSON uses curly braces and brackets with quoted keys, while YAML uses indentation and is more human-readable. YAML supports comments and multi-line strings, which JSON doesn't. Both are commonly used for configuration files and data interchange.
When should I use YAML vs JSON?
Use YAML for configuration files (like Docker Compose, Kubernetes, CI/CD) where readability matters. Use JSON for APIs, data storage, and when you need strict syntax. YAML is more compact for nested structures but JSON is more widely supported.
Can YAML represent everything JSON can?
Yes, YAML is a superset of JSON. Any valid JSON is also valid YAML. However, YAML has additional features like comments, anchors, and aliases that JSON doesn't support, so some YAML features won't convert to JSON.
Is my data safe when converting?
Absolutely! All conversions happen entirely in your browser. Your JSON and YAML data is never sent to any server, ensuring complete privacy for sensitive configuration files.