JSON to YAML Converter
Convert JSON to YAML instantly online. Paste any JSON object or array and get clean, idiomatic YAML output. Free JSON to YAML converter — no install required.
Output will appear here
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How It Works
- 1Paste your JSON object or array
- 2DevConvert parses it and serialises to idiomatic YAML
- 3Copy the YAML output or download it as a .yaml file
Examples
Input
{"host":"localhost","port":3000,"debug":false}Output
host: localhost port: 3000 debug: false
Input
{"db":{"host":"localhost","port":5432},"redis":{"url":"redis://localhost"}}Output
db: host: localhost port: 5432 redis: url: 'redis://localhost'
Input
{"fruits":["apple","banana","cherry"]}Output
fruits: - apple - banana - cherry
Frequently Asked Questions
Why convert JSON to YAML?
YAML is easier for humans to read and write. It is widely used in configuration files for tools like Docker Compose, Kubernetes, GitHub Actions, Ansible, and Rails.
Will all JSON values convert correctly to YAML?
Yes. JSON is a strict subset of YAML 1.2. All JSON types — strings, numbers, booleans, null, arrays, and objects — map directly to YAML equivalents.
Does YAML support comments that JSON doesn't?
Yes. YAML supports # comments, which is one reason developers prefer YAML for config files. DevConvert's output is clean YAML that you can manually annotate with comments.
Can I convert YAML back to JSON?
Yes — use the YAML to JSON tool on DevConvert. The conversion is fully reversible for standard JSON-compatible YAML.