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JSON to YAML Converter

Convert between JSON and YAML formats instantly.

How it works

  1. 1

    Select direction

    Choose JSON to YAML or YAML to JSON conversion.

  2. 2

    Paste your data

    Paste JSON or YAML into the left panel. Output updates in real time.

  3. 3

    Copy the result

    Click Copy to copy the converted output.

Common use cases

  • Simple object

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

  • Nested config

    {"server": {"port": 8080, "host": "localhost"}}

About This Tool

Convert JSON to YAML or YAML to JSON with this free bidirectional converter. Paste your data into the input panel, choose a direction, and see the converted output update in real time.

Ideal for developers working with configuration files for Docker, Kubernetes, GitHub Actions, CI/CD pipelines, or any tool that uses YAML. The converter preserves key ordering and handles nested structures, arrays, and all standard data types.

All processing runs entirely in your browser using the js-yaml library -- your data never leaves your device.

More examples

Examples

Simple object

Input

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

Output

name: Alice
age: 30

Nested config

Input

{"server": {"port": 8080, "host": "localhost"}}

Output

server:
  port: 8080
  host: localhost
Frequently Asked Questions
What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data serialization format commonly used for configuration files in Docker, Kubernetes, GitHub Actions, and other DevOps tools.
Is my data sent to a server?
No. All conversion happens entirely in your browser using the js-yaml library. Your data never leaves your device.
Does the converter preserve key ordering?
Yes. The converter preserves the original key order from your input when generating the output.

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JSON, YAML, XML, and CSV: When to Use Each and How to Convert

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