JSON to YAML Converter

Convert JSON data to YAML format instantly. Free online JSON to YAML converter for developers and DevOps engineers.

JSON Input

YAML Output

Migrating Configs: JSON to YAML

YAML is the preferred format for DevOps and infrastructure-as-code due to its superior readability and comment support. Our converter allows you to migrate JSON-based API responses into clean, commented YAML files instantly.

100% Local Conversion

Preserves nested object structures

Handles complex array types

Zero-latency browser execution

Convert JSON values to readable YAML

JSON maps directly to a useful subset of YAML, but YAML has additional syntax and type rules. Review strings that resemble dates, booleans, or numbers when another parser will consume the result.

Example input

{"service":"api","ports":[8080,8081],"enabled":true}

Expected output

service: api
ports:
  - 8080
  - 8081
enabled: true

Behavior

Converts nested objects and arrays using indentation.
Preserves JSON null, boolean, number, and string value types.
Quotes values when needed to avoid ambiguous YAML syntax.

Limits and edge cases

JSON has no YAML comments, anchors, aliases, or custom tags to preserve.
Object-key ordering is presentation, not a semantic guarantee.
Round trips through YAML parsers can differ for ambiguous scalar syntax.

Processing note: tool input stays in the browser. Readme.now analytics records page usage, not the payload you paste or the generated output.

Authoritative reference: YAML 1.2.2 specification