YAML to JSON Converter
YAML to JSON ConverterConvert Data
About YAML to JSON
Convert YAML configuration files to JSON format. YAML uses indentation for structure while JSON uses braces and brackets. This tool handles nested objects, arrays, and common YAML data types.
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What is YAML to JSON Conversion?
YAML to JSON conversion transforms YAML (YAML Ain't Markup Language) configuration files into JSON (JavaScript Object Notation) format. This is useful when you need JSON for APIs, programming languages, or tools that don't support YAML.
YAML is popular for its human-readable format and is commonly used in DevOps tools like Docker Compose, Kubernetes, and Ansible. JSON is more universal and supported by virtually all programming languages.
This free tool converts YAML to JSON while preserving the data structure, including nested objects, arrays, and primitive values. All processing happens in your browser for privacy.
Features
Data Type Preservation
Correctly converts strings, numbers, booleans, and null values from YAML to JSON.
Nested Structure Support
Handles deeply nested objects and maintains the hierarchical structure.
Array Conversion
Converts YAML lists (using hyphens) to proper JSON arrays.
Customizable Output
Choose between 2 spaces, 4 spaces, tabs, or minified JSON output.
Download & Copy
Download the converted JSON as a file or copy it directly to your clipboard.
Error Handling
Provides clear error messages when YAML syntax is invalid.
YAML to JSON Conversion Guide
Key-Value Pairs: YAML "key: value" becomes JSON {"key": "value"}.
Nested Objects: YAML indentation becomes JSON nested objects with braces.
Lists: YAML "- item" syntax becomes JSON arrays with brackets.
Strings: YAML strings become JSON quoted strings.
Numbers: YAML numbers remain as numeric values in JSON.
Booleans: YAML true/false become JSON true/false (unquoted).
Null: YAML null or ~ becomes JSON null.
Frequently Asked Questions
Why convert YAML to JSON?
JSON is more widely supported by programming languages and APIs. Some tools and libraries only accept JSON input. Converting YAML to JSON enables broader compatibility.
Are YAML comments preserved?
No, JSON does not support comments. YAML comments (lines starting with #) are ignored during conversion as JSON has no comment syntax.
Does it handle complex YAML features?
This tool handles common YAML features like nested objects, arrays, and basic data types. Advanced YAML features like anchors, aliases, and multi-line strings may have limited support.
Is my data secure?
Yes. All processing happens entirely in your browser using JavaScript. Your YAML data never leaves your device and is not sent to any server.