YML

YAML ↔ JSON Converter

Convert between YAML and JSON formats instantly

Direction

Indent

Input

Output

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What is YAML ↔ JSON Converter?

Free online YAML ↔ JSON converter to convert YAML to JSON or JSON to YAML instantly with this free online converter.

Paste data in either format and get a validated, properly formatted output in the other. The tool handles complex nested structures, arrays, multi-line strings, comments (in YAML), and special data types. Essential for DevOps engineers working with Kubernetes manifests, Docker Compose files, CI/CD configs, and API specifications. Everything runs in your browser - your configuration data stays private. No signup required.

How to Use YAML ↔ JSON Converter

1Select the conversion direction: YAML to JSON or JSON to YAML
2Paste your YAML or JSON data into the input editor
3Click 'Convert' to generate the output in the target format
4Review the validated output and copy it for use in your project

Frequently Asked Questions

YAML (YAML Ain't Markup Language) uses indentation and minimal syntax for readability, supports comments, and is commonly used for configuration files. JSON (JavaScript Object Notation) uses braces and brackets, is more verbose but universally supported by programming languages. Both represent the same data structures.

No. JSON does not support comments, so YAML comments are lost during conversion to JSON. When converting JSON to YAML, you can add comments manually to the YAML output afterward.

Yes. The converter handles YAML multi-line strings (using | and > block scalars), anchors and aliases, and special types like dates, booleans, and null values. These are converted to their closest JSON equivalents.

Absolutely. This tool is ideal for converting Kubernetes manifests, Docker Compose files, GitHub Actions workflows, and other DevOps configurations between YAML and JSON formats for debugging or integration purposes.

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