YAML to JSON Converter

Convert YAML to JSON format instantly. Supports nested objects, arrays, and common YAML features. Free and fully client-side.

Everything runs in your browser — your data is never sent to any server.

Why use a YAML to JSON Converter?

While YAML is excellent for human-readable configuration, JSON is the standard format for APIs, databases, and programmatic data processing. Converting YAML to JSON allows you to use configuration data in applications, APIs, and tools that require JSON input. Our parser handles common YAML structures including nested objects, arrays, and various data types.

Key Features

  • Parse YAML with nested objects and arrays
  • Support for common YAML data types (strings, numbers, booleans, null)
  • Handle inline arrays and objects

How to use

  1. Paste your YAML data in the input field
  2. Click Convert to generate JSON output
  3. Copy the JSON result for your application

Technical Details

Our YAML parser handles the most common YAML features including key-value pairs, nested objects via indentation, array items with dash notation, inline arrays and objects, and automatic type detection for booleans, numbers, null values, and strings. Complex YAML features like anchors, aliases, and multi-document streams are not supported.

FAQ

Does this support all YAML features?

Our parser supports the most common YAML features needed for configuration files. Advanced features like anchors, aliases, type tags, and multi-document streams are not supported.

How does indentation work?

YAML uses indentation to define structure. Our parser detects indentation levels and converts them to nested JSON objects. Consistent indentation (2 or 4 spaces) produces the best results.

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