YAML is ubiquitous in the DevOps ecosystem but difficult to parse manually and poorly supported in data processing tools. Converting YAML to JSON allows you to use all standard JSON analysis tools: jq, JSON Schema, online validators.
YAML to JSON conversion is the reverse of JSON to YAML. YAML indented blocks become JSON objects, dash-prefixed lists become JSON arrays, YAML scalars are typed according to their value (string, integer, float, boolean, null). YAML anchors and aliases (& and *) are resolved before conversion.
📊 Reference table
| YAML (input) | JSON (output) |
|---|---|
| name: Alice | {"name": "Alice"} |
| port: 8080 | {"port": 8080} |
| debug: true | {"debug": true} |
| items: - a - b | {"items": ["a", "b"]} |
| db: host: localhost | {"db": {"host": "localhost"}} |
💡 Practical examples
Example 1: debug a Helm values.yaml file
Convert your values.yaml to JSON to validate it with a JSON Schema or compare it with a configuration expected by a third-party tool.
Example 2: read a GitHub Actions CI/CD workflow
GitHub Actions workflows in YAML can be complex. Convert to JSON and use jq to extract step names or environment variables.
Example 3: validate an Ansible config
Ansible uses YAML for playbooks. Convert to JSON, validate the structure with a JSON schema tool and ensure all mandatory keys are present.