Question 1

How do I convert between YAML and JSON?

Accepted Answer

Paste your YAML or JSON into the input field, then choose YAML to JSON or JSON to YAML. The converted result appears in the output, and you can copy it from there.

Question 2

What does the Swap button do?

Accepted Answer

Swap moves the converted output back into the input field so you can convert it again in the other direction. It is handy for round-trip checks or chaining conversions without copying manually.

Question 3

Why does my input show a parser error?

Accepted Answer

The tool only converts valid YAML or JSON, so it shows a parser error when the syntax is broken. Check YAML indentation and colons, or JSON quotes, commas, and brackets, then fix the spot the message points to.

Question 4

Is this converter free and does it work offline?

Accepted Answer

Yes. It is completely free with no account or sign-up, and because all conversion happens in your browser it keeps working even after the page has loaded and you go offline.

Question 5

Is my YAML or JSON uploaded anywhere?

Accepted Answer

No. Parsing and conversion run entirely in your browser, so your YAML, JSON, and any sensitive values inside them are never uploaded, stored, or tracked.

YAML <-> JSON

FAQ