JSON to YAML · Config · DevOps
Convert JSON to YAML online
Updated: May 2026
You have a JSON object — an API response, an exported config, or a data structure — and you want to turn it into YAML for a DevOps pipeline, a readable config file, or a deployment manifest. This guide shows you how to do it cleanly.
Free · No upload · Browser-based conversion
Why convert JSON to YAML
JSON is exhaustive but verbose for files that humans need to read and maintain. YAML offers a more compact syntax: no mandatory quotes around keys, optional comments, and indentation that reflects hierarchy without braces or brackets.
- Generate a
docker-compose.ymlfrom a JSON config. - Create a Kubernetes manifest from an exported JSON spec.
- Produce Ansible variables or Helm Chart parameters from a JSON object.
- Convert CI/CD settings (JSON) into readable GitHub Actions or GitLab CI config.
Conversion example
{
"image": "node:20-alpine",
"ports": ["3000:3000"],
"environment": {
"NODE_ENV": "production"
},
"restart": "unless-stopped"
}Becomes:
image: node:20-alpine
ports:
- 3000:3000
environment:
NODE_ENV: production
restart: unless-stoppedThe output is directly usable in a docker-compose.yml or Kubernetes manifest.
Key conversion rules
- Special strings: strings that look like booleans (
true,yes) or numbers are automatically quoted. - Complex keys: keys containing special characters (colons, brackets) are automatically quoted.
- Empty arrays and objects: rendered as inline
[]and{}. - Null: JSON
nullbecomesnullin YAML.
Frequently asked questions
My JSON has keys with special characters — is that handled?
Yes. Keys that require quoting (colons, brackets, spaces) are automatically wrapped in quotes in the YAML output.
Are nested arrays supported?
Yes. Arrays of objects and multi-level structures are fully handled.
Can I add comments to the generated YAML?
No. Conversion is structural. Comments must be added manually to the final YAML file.