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JSON to YAML Converter

Instantly convert JSON data to clean, properly indented YAML format. Supports nested objects, arrays, and all JSON data types.

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About This Tool

YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files, Kubernetes manifests, Docker Compose files, and CI/CD pipelines. This converter transforms any valid JSON into clean YAML with proper indentation and formatting. The converter handles all JSON data types including nested objects, arrays, strings, numbers, booleans, and null values. Special characters in string values are automatically quoted where needed. The output follows YAML 1.2 conventions for maximum compatibility with parsers like PyYAML, js-yaml, and Go's yaml package. Paste your JSON on the left and get formatted YAML on the right instantly. The copy button lets you grab the output with a single click. Error messages are shown inline if the input is not valid JSON.