JSON to YAML Converter Online — Free Bidirectional
Convert JSON to YAML and YAML to JSON online for free. Handles nested structures and arrays. Instant conversion, no signup required. For configs.
Convert JSON to YAML and back. YAML is more readable for configuration files; JSON is more universal for APIs. Convert between them easily.
How to use JSON to YAML Converter Online — Free Bidirectional
- Paste JSON to convert to YAML, or paste YAML to convert to JSON.
- The conversion runs automatically.
- Copy the converted output.
Features
- Bidirectional: JSON to YAML and YAML to JSON.
- Handles nested objects and arrays.
- Preserves data types (strings, numbers, booleans, null).
- Configurable indentation (2 or 4 spaces).
FAQ
When should I use YAML vs JSON?
YAML is better for human-written configuration files (Docker Compose, CI/CD pipelines, Kubernetes) because it supports comments and is more readable. JSON is better for data interchange between systems because it's stricter and universally supported.
Does YAML support comments?
Yes, YAML supports comments with #. JSON does not support comments. When converting JSON to YAML, you can then add comments manually. Converting YAML with comments back to JSON will lose the comments.
Are there YAML features that don't convert to JSON?
Yes. YAML supports anchors (&alias), aliases (*alias), multi-line strings (| and >), and custom tags. These don't have JSON equivalents. The converter handles standard YAML but may not preserve advanced features.