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YAML ↔ JSON Converter is a free online tool that converts JSON to YAML and YAML back to JSON. Supports nested objects and arrays. No installation required — runs entirely in your browser.

YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used in configuration files, CI/CD pipelines, and Kubernetes manifests. JSON is the standard for APIs. This tool converts between the two formats, making it easy to work with both ecosystems.

YAML ↔ JSON Converter

Convert JSON to YAML or YAML to JSON instantly in your browser.

How to Use

  1. Paste your JSON or YAML into the input field
  2. Click 'JSON → YAML' to convert JSON to YAML format
  3. Or click 'YAML → JSON' to convert YAML to JSON format
  4. Copy the converted output as needed

Example

Input

{"name":"Alice","age":30}

Output

name: Alice
age: 30

FAQ

What is YAML used for?
YAML is widely used for configuration files in tools like Docker Compose, Kubernetes, GitHub Actions, and Ansible due to its human-readable syntax.
Is this tool free?
Yes, it is completely free with no registration required.
Does this tool run in the browser?
Yes, all conversion happens locally in your browser with no data sent to a server.

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