YAML to JSON Converter

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

YAML to JSON

YAML Input

JSON Output

Parsing YAML for Modern APIs

Convert human-readable YAML configurations into machine-readable JSON payloads. Essential for testing CI/CD pipelines, Kubernetes manifests, and Docker Compose files before they reach your deployment scripts.

Strict JSON Output

Ensures compliance with standard JSON specifications and schema validation.

Privacy Guaranteed

No data logging or server-side transmission. All parsing is local.

Parse YAML into explicit JSON values

Converting YAML to JSON removes presentation features such as comments and anchors while preserving the resolved data. The result is useful for APIs and tools that require JSON syntax.

Example input

service: api
ports: [8080, 8081]
enabled: true

Expected output

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

Behavior

Resolves YAML mappings, sequences, and scalar values.
Outputs strict JSON with double-quoted keys and strings.
Reports indentation and syntax failures from the YAML parser.

Limits and edge cases

Comments and formatting style do not exist in JSON.
Aliases are resolved into values rather than retained as references.
Custom YAML tags may not have a meaningful JSON representation.

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