JSON to YAML

Convert JSON documents to YAML. Paste JSON and click Run to generate readable YAML output.

  • Runs entirely in your browser
  • No data stored or sent to a server
  • Free forever — no signup
  • Instant conversion

Input and Output

Use the interactive encoder and decoder on this page to process your text.

Learn more about JSON to YAML conversion

How to Convert JSON to YAML

JSON to YAML

When to Convert JSON to YAML

Convert JSON API responses and configs to YAML for Kubernetes manifests, Docker Compose files, GitHub Actions workflows, and human-readable configuration that supports comments.

Real-World Examples

API response JSON → starter Kubernetes deployment YAML

package.json scripts object → simplified YAML for documentation

Nested settings object → Ansible-style config file

Common Mistakes

  • Assuming comments from the original JSON carry over — JSON has no comments
  • YAML treats yes/no and unquoted dates specially — review output
  • Converting extremely deep nesting without checking YAML readability

Developer Tips

  • Validate JSON before converting
  • Add comments manually in YAML after conversion
  • Use YAML to JSON conversion to verify round-trip if needed

Frequently asked questions

Is the conversion lossless?

For typical data structures, yes. Review output when converting values that YAML treats specially, such as null vs empty strings.

What indentation is used?

Output uses 2-space indentation, the standard YAML convention.

Are JSON arrays preserved?

Yes. JSON arrays become YAML sequences with the same element order.