JSON ⇄ YAML Converter
Paste JSON or YAML and convert it to the other format instantly. Everything happens in your browser: your config is never uploaded to any server.
How to convert JSON and YAML
- Paste your JSON or YAML into the box on the left.
- Choose the conversion direction (JSON→YAML or YAML→JSON).
- Click “Convert” and check the result on the right.
- Copy the result with the “Copy” button.
Frequently asked questions
Is my data uploaded to any server?
No. The conversion happens entirely in your browser with JavaScript. Your JSON or YAML is never sent over the internet.
What is the difference between JSON and YAML?
Both represent structured data. JSON uses braces and quotes and is very strict; YAML uses indentation and is more human-readable. They are interchangeable for most configurations.
Can I convert in both directions?
Yes. The converter is bidirectional: switch from JSON to YAML and from YAML to JSON with one click.
What happens if my text has a syntax error?
The tool shows you the error message so you know where the problem is, without losing what you wrote.
Does it preserve key order?
Yes, the order of keys is preserved exactly as it appears in the input.