JSON YAML

JSON to YAML Converter

Convert JavaScript Object Notation to YAML Ain't Markup Language online. Free, runs in your browser — no upload, no signup.

JSON YAML

How to convert JSON to YAML

Paste your JSON data into the input box on the left, click Convert, and get YAML output on the right. Everything runs locally in your browser.

Example: JSON → YAML

Input (JSON)

[
  {"name": "Alice", "age": 30, "city": "Beijing"},
  {"name": "Bob", "age": 25, "city": "Shanghai"}
]

Output (YAML)

- name: Alice
  age: 30
  city: Beijing
- name: Bob
  age: 25
  city: Shanghai

About JSON and YAML

JSON (JavaScript Object Notation, .json) and YAML (YAML Ain't Markup Language, .yaml) are common structured data formats. This converter transforms JSON into YAML entirely in your browser — no data is uploaded to any server.

Frequently asked questions

Is this JSON to YAML converter free?

Yes, completely free. All conversion happens in your browser, so your data never leaves your device.

Do I need to upload my .json file?

No. Paste the content directly. There is no server-side processing, no file upload, and no storage.

Is there a limit on data size?

It depends on your browser, but most machines handle tens of thousands of rows without issue. For very large files, performance may vary.