// Simple object
name: John
age: 25
active: true{
"name": "John",
"age": 25,
"active": true
}JSON to YAML.
Convert JSON into clean, human-readable YAML in your browser. Deterministic ordering, sensible quoting, full client-side processing.
JSON input
YAML output
Your input is processed locally and isn't uploaded for processing. Verify by opening DevTools → Network — there are no requests carrying your data.
JSON to YAML examples.
// Nested object
user:
name: John
address:
city: New York
country: USA{
"user": {
"name": "John",
"address": {
"city": "New York",
"country": "USA"
}
}
}// Array of items
languages:
- JavaScript
- Python
- Go{
"languages": [
"JavaScript",
"Python",
"Go"
]
}Frequently asked questions.
Is my JSON sent to a server?
No. Conversion runs entirely in your browser. Open the network tab and you will see no request carrying your JSON.
Does the converter preserve key order?
Yes. We use js-yaml which preserves the iteration order of the parsed JSON object.
What if my JSON is invalid?
You will see an error message with the exact line and column where the parse failed. Your input is preserved.
How are numbers and booleans emitted?
Numbers, booleans, and null values are emitted as native YAML scalars (not quoted strings).