Tool overview
What is a YAML ↔ JSON Converter?
A YAML ↔ JSON converter translates configuration between YAML documents and JSON so you can move configs across tools that prefer one format.
Why use this YAML ↔ JSON tool?
Validate and transform config snippets locally when migrating Helm values, CI configs, or API examples between formats.
Key Features
Bidirectional convert, js-yaml powered parsing, instant errors, and private browser-side processing.
How to Use
Follow these steps to get accurate results from the tool interface above.
- Select YAML → JSON to serialize a config file into strict JSON, or JSON → YAML to produce human-readable YAML from an API response.
- Paste source text into the left input panel—the transform runs automatically after a short debounce.
- Accept the Magic Paste prompt when clipboard content is detected as YAML or JSON to auto-select the correct direction.
- Use Swap to move output back to input and flip conversion direction in one action.
- Copy the result or pipe output to JSON Formatter or JSON to CSV from the output toolbar.
YAML ↔ JSON Syntax Reference
YAML is a superset of JSON with additional scalar types and anchors. These mappings cause the most conversion failures.
| Feature / Context | Valid Syntax Example | Common Pitfall / Invalid Example |
|---|---|---|
| String Quoting | name: "O\"Reilly" | name: O'Reilly: adminUnquoted colons inside scalar values terminate the key early; quote strings containing special characters. |
| Indentation | parent:
child: true | parent:
child: trueYAML forbids mixing tab and space indentation; inconsistent depth breaks the parse tree. |
| JSON Root Type | { "users": [{ "id": 1 }] } | { "users": { "id": 1 } }When converting JSON arrays to YAML sequences, ensure the JSON root is an object or array—not a bare scalar. |
| Multi-line Strings | description: |
line one
line two | description: "line one
line two"Literal block scalars (|) preserve newlines; escaped \n inside JSON strings must be unescaped during YAML export. |
Frequently Asked Questions
Expandable answers for common debugging bottlenecks and data privacy questions.
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Official Documentation & References
Authoritative specifications and platform documentation for this utility.