Yes. YAML is a strict superset of JSON, so every valid JSON document is also valid YAML. This tool produces the idiomatic block-style YAML most people expect rather than the inline JSON-like form.

Does converting JSON to YAML lose any data?

No. JSON and YAML map to the same underlying data structure, so the conversion is lossless. Keys, nesting, arrays, numbers, booleans, and null values are all preserved.

Is my JSON uploaded anywhere?

No. The conversion happens locally in your browser using JavaScript. Nothing is sent to a server, which makes it safe for sensitive configuration and credentials.

Can I convert the YAML back to JSON?

Yes. Edit the YAML side directly and the JSON updates, or use the dedicated YAML to JSON converter for the reverse direction.

JSON to YAML Converter

Convert JSON to YAML online — paste JSON and get clean, indented YAML instantly. Free, browser-based, nothing leaves your device.

YAML

JSON

{
  "name": "Example",
  "version": 1,
  "items": [
    {
      "id": 1,
      "value": "foo"
    },
    {
      "id": 2,
      "value": "bar"
    }
  ]
}

About JSON to YAML Converter

Paste any valid JSON and this converter renders the equivalent YAML in real time. Conversion runs entirely in your browser — your data is never uploaded to a server — so it is safe for config files, secrets, and API payloads.

JSON and YAML describe the same data model, so the conversion is lossless: objects become mappings, arrays become sequences, and scalars keep their types. YAML's indentation-based syntax is often easier to read and is the default for Kubernetes manifests, GitHub Actions, Docker Compose, and Ansible.

How to use JSON to YAML Converter

Paste your JSON
Paste or type JSON into the JSON editor on the right.
Read the YAML
The YAML editor on the left updates automatically with the converted output.
Copy or edit
Copy the YAML with the copy button, or keep editing either side — both stay in sync.

Frequently asked questions

YAML ⇄ JSON Converter

The full bidirectional converter.

YAML to JSON Converter

Convert the other direction.

Looking for the full tool? Open the complete converter.

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