Question 1

What's the difference between JSON and YAML?

Accepted Answer

JSON (JavaScript Object Notation) is a strict, machine-friendly format that uses braces, brackets and quoted strings. YAML (YAML Ain't Markup Language) is a superset of JSON designed for human readability — it uses indentation instead of brackets, supports comments (#), multi-line strings, anchors and references. Most YAML parsers can read JSON directly.

Question 2

Is my JSON data sent to a server?

Accepted Answer

No. The conversion happens entirely in your browser using JavaScript. Nothing is uploaded, stored or transmitted. You can use this tool offline after the page loads.

Question 3

Can I convert nested JSON to YAML?

Accepted Answer

Yes. The converter handles arbitrarily nested objects, arrays, primitives (strings, numbers, booleans, null) and edge cases like empty containers. Indentation is automatic and consistent.

Question 4

What about special characters in strings?

Accepted Answer

Strings with special characters (colons, hashes, newlines, leading spaces, numbers) are automatically quoted to ensure round-trip parsing. The output is always valid YAML that, when parsed, produces the same structure as the input JSON.