JSON ↔ YAML converter tool icon
Data & JSON tools

JSON ↔ YAML converter

Convert between JSON and YAML directly in your browser. Supports configurable JSON indentation and one-click copy for quick config editing.

JSON input
YAML output
Hint: YAML is whitespace-sensitive. If parsing fails, check indentation and special characters first.

Usage & Instructions

1. Select conversion direction (JSON to YAML or YAML to JSON). 2. Paste your data into the input box on the left. 3. If converting to JSON, adjust indentation (2/4/8) in the toolbar. 4. The tool automatically converts and displays the result on the right. 5. Click "Copy result" to copy the converted data to your clipboard.

Tips

**Local Processing** All conversions happen entirely within your browser via JavaScript. No data is sent to any server, ensuring your privacy.

**Format Control** YAML is whitespace-sensitive; check your input indentation if conversion fails. When converting to JSON, you can customize the output indentation level via the dropdown menu.

**Troubleshooting** If you see a "Conversion failed" error, check your input for invalid characters, such as unclosed quotes or illegal escape sequences.

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JSON to Java POJO

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JSON to Python model

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JSON to Kotlin data class

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