Question 1

What does this JSON ⇄ YAML converter do?

Accepted Answer

It converts JSON to YAML and YAML back to JSON. Paste your data, pick a direction, and copy the result — it works both ways.

Question 2

Is my data sent to a server?

Accepted Answer

No. Conversion runs entirely in your browser using the js-yaml library, so your data never leaves your device and stays completely private.

Question 3

Does it handle nested objects, arrays and null?

Accepted Answer

Yes. Nested objects, arrays, booleans, numbers, strings and null are all converted correctly in both directions, following the YAML 1.2 spec.

Question 4

Why convert JSON to YAML?

Accepted Answer

YAML is easier to read and is widely used for configuration files (Docker Compose, Kubernetes, CI pipelines, etc.), while JSON is common in APIs. Converting between them saves manual rewriting.

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JSON ⇄ YAML Converter