JSON ↔ YAML Converter

Convert JSON to YAML or YAML to JSON. Toggle direction with one click — your last output becomes the new input. Supports nested objects, arrays, and all scalar types.

JSON → YAML

Indent

Paste your input above and click Convert.

About the JSON ↔ YAML Converter

Converts between JSON and YAML — two of the most common data serialisation formats used in configuration files, APIs, and developer tooling. Click Swap direction to reverse the conversion and use your last output as the new input.

What is YAML?

YAML (YAML Ain't Markup Language) is a human-readable data serialisation format commonly used for configuration files (Docker Compose, Kubernetes, GitHub Actions, Ansible). It uses indentation to represent structure rather than braces and brackets.

Supported types

Strings, numbers, booleans (true/false/yes/no), and null
Nested objects and arrays
Strings requiring quotes (special characters, reserved words) are automatically quoted
YAML comments are ignored during YAML → JSON conversion