JSON to YAML変換

JSONをYAMLに、YAMLをJSONにオンライン変換。

JSON

YAML

About JSON and YAML

JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language) are both popular data serialization formats. JSON is widely used in APIs and web apps, while YAML is preferred for configuration files (Docker, Kubernetes, CI/CD). This tool converts between the two formats instantly in your browser.

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How to Use

Paste JSON in the left panel or YAML in the right panel
Click 'JSON → YAML' or 'YAML → JSON' to convert
Copy the converted output
Use 'Load Sample' to try with example data

Common Use Cases

Converting JSON configs to YAML for Kubernetes/Docker
Converting YAML CI/CD configs to JSON for programmatic access
Migrating between configuration formats
Learning YAML syntax from familiar JSON structures

Frequently Asked Questions

What's the difference between JSON and YAML?

JSON uses braces and brackets with strict syntax. YAML uses indentation and is more human-readable. Both represent the same data structures.

Why convert between JSON and YAML?

JSON is standard for APIs and web apps. YAML is preferred for configuration files (Docker, Kubernetes, CI/CD). Developers often need to convert between them.

Is the conversion accurate?

Yes. The tool handles objects, arrays, strings, numbers, booleans, and null values. For basic to moderately complex structures, the conversion is accurate.