Is my data uploaded to a server?

No. Conversion happens entirely in your browser using JavaScript. Nothing you paste is sent anywhere.

Is there a file size limit?

No. Since it runs locally, there's no size cap like many hosted converter tools impose.

Sibling elements with the same tag name become a JSON array. A single occurrence becomes a plain object or value.

Yes. Pick YAML as the "From" format and XML as the "To" format (or vice versa) — the conversion goes through a shared data structure internally.

Convert between JSON, YAML, and XML in any direction, entirely in your browser.

From

Input

Output

name: Ada Lovelace
born: 1815
tags:
  - mathematician
  - writer

Choose the format you're converting from and to, then paste your data into the input box. The converted result appears instantly on the right.

Use the swap button to flip the two formats and continue editing from the output, and the copy button to grab the result.

Is my data uploaded to a server?: No. Conversion happens entirely in your browser using JavaScript. Nothing you paste is sent anywhere.
Is there a file size limit?: No. Since it runs locally, there's no size cap like many hosted converter tools impose.
How are repeated XML elements converted to JSON?: Sibling elements with the same tag name become a JSON array. A single occurrence becomes a plain object or value.
Can I convert directly between YAML and XML?: Yes. Pick YAML as the "From" format and XML as the "To" format (or vice versa) — the conversion goes through a shared data structure internally.