YAML to JSON

What this tool does

YAML to JSON: free online File tool with clear controls, private processing where supported and verifiable results.

Input and output

Convert to JSON: text you paste into the page → data.json (application/json)

How to use YAML to JSON

1. Provide text you paste into the page.
2. Fill in YAML.
3. Leave Multiple documents at its default "auto" or choose another value.
4. Press "Convert to JSON" and review the result in the panel on the right.
5. Download or copy data.json (application/json).

Settings

Multiple documents

Automatic · Always array · First document only

JSON format

Pretty · Minified

Privacy and limitations

• YAML to JSON runs entirely in your browser: the input is not uploaded, so it never leaves your device.
• Results depend on valid input and on the limits declared by each field above; this page does not promise a fixed processing time or file size.

Frequently asked questions

Is my data uploaded when I use YAML to JSON?

No. This tool runs entirely in your browser, so the input stays on your device and is not uploaded.

Which input does it accept?

It works with text you paste into the page.

What do I get back?

After you press "Convert to JSON" the result panel shows data.json (application/json), which you can copy or download.

Can I change the settings?

Yes. The page exposes Multiple documents (Automatic, Always array, First document only); JSON format (Pretty, Minified).