Does the conversion preserve data types?

Yes. Numbers, booleans, null values, arrays and nested objects are all correctly mapped between JSON and YAML representations.

Can I convert YAML to JSON too?

Yes. The tool supports bidirectional conversion. Paste YAML to get JSON or paste JSON to get YAML, with automatic format detection.

Is my config data safe?

Yes. All conversion happens locally in your browser. No configuration files, secrets or environment variables are ever transmitted to a server.

Convert JSON to YAML Online Free

Transform JSON data into clean YAML format or convert YAML back to JSON with a single paste. This free browser-based tool handles the conversion instantly and keeps your configuration data completely private.

Open JSON to YAML

Conversion Example

JSON Input:
{
  "server": {
    "port": 3000,
    "host": "0.0.0.0",
    "ssl": true
  }
}

YAML Output:
server:
  port: 3000
  host: "0.0.0.0"
  ssl: true

Common Use Cases

Converting package.json settings to YAML for CI/CD pipelines
Translating Kubernetes JSON manifests to YAML
Converting API responses to YAML for documentation
Migrating configuration between JSON and YAML based systems

Frequently Asked Questions

Does the conversion preserve data types?: Yes. Numbers, booleans, null values, arrays and nested objects are all correctly mapped between JSON and YAML representations.
Can I convert YAML to JSON too?: Yes. The tool supports bidirectional conversion. Paste YAML to get JSON or paste JSON to get YAML, with automatic format detection.
Is my config data safe?: Yes. All conversion happens locally in your browser. No configuration files, secrets or environment variables are ever transmitted to a server.