JSON to YAML Converter
Convert between JSON and YAML in both directions.
Two ways of writing the same data
JSON and YAML describe the same kind of structured data in different styles: JSON with its brackets and quotes, YAML with indentation and a cleaner, more human-friendly look that has made it the default for configuration files. This converts between them either way, so you can turn a JSON config into readable YAML, or YAML back into JSON for a system that needs it.
Paste JSON to get YAML, or YAML to get JSON.
YAML's famous gotchas
YAML is pleasant to read but has sharp edges worth respecting. Indentation is significant, so a stray space can change the structure or break the file entirely. It also guesses types eagerly — the word yes can become a boolean, and a value like 007 can lose its leading zeros — which occasionally surprises people, the classic case being a country code no turning into false. Converting from JSON gives you clean, correctly-typed YAML; when writing YAML by hand, quote values that might be misread.
JSON to YAML Converter FAQ
Why is YAML popular for config files?
Its indentation-based, quote-free style is easier for humans to read and edit than JSON's brackets, which suits configuration well.
What is a common YAML gotcha?
It guesses types eagerly — yes can become a boolean and leading zeros can be lost — so quote values that might be misread.
Is my data uploaded?
No. The conversion happens in your browser.