YAML ↔ JSON Converter

How to Use the YAML/JSON Converter

Select your conversion direction (YAML to JSON or JSON to YAML), paste your content in the input field, and see the converted output instantly. Use the Swap button to quickly reverse the conversion with your output.

Features

• Bi-directional - Convert YAML to JSON or JSON to YAML
• Instant Conversion - Results appear as you type
• Error Messages - Clear feedback for invalid input
• Formatting Options - Choose indentation for JSON output
• Sample Data - Load example content to test

Useful with the JSON Formatter for validation and the XML Formatter when converting between config formats.

YAML vs JSON Comparison

When to Use YAML

• Configuration files (Kubernetes, Docker Compose, GitHub Actions)
• Human-editable data files
• When you need comments in your config
• DevOps and infrastructure as code

When to Use JSON

• API data exchange
• JavaScript/TypeScript projects
• When strict syntax is preferred
• Browser/Node.js native parsing

Frequently Asked Questions

Does YAML support everything JSON does?

Yes, YAML is a superset of JSON. Any valid JSON is also valid YAML. YAML adds additional features like comments, anchors, and multi-line strings.

Why do my comments disappear when converting?

JSON doesn't support comments. When converting YAML to JSON, comments are stripped because they cannot be represented in JSON format.

Is the conversion lossless?

The data is preserved, but some YAML-specific features (comments, anchors, explicit typing) are lost when converting to JSON. Converting back to YAML won't restore these features.