Our free online JSON to YAML converter allows you to easily convert data between JSON (JavaScript Object Notation) and YAML (YAML Ain't Markup Language) formats. This tool is designed for developers, DevOps engineers, and anyone working with configuration files or data interchange formats.

Features of Our JSON-YAML Converter

Bidirectional Conversion: Convert from JSON to YAML or YAML to JSON with a single click.
Syntax Highlighting: Color-coded syntax makes it easier to read and understand both formats.
Validation: Automatically validates your input to ensure it's valid JSON or YAML.
Copy to Clipboard: Easily copy the converted output with a single click.
Dark Mode Support: Work comfortably in any lighting condition with our dark mode option.
Privacy-Focused: All conversions happen in your browser - your data never leaves your computer.

Understanding JSON and YAML

JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write and easy for machines to parse and generate. It's based on a subset of JavaScript syntax and is commonly used for configuration files, API responses, and data storage.

YAML (YAML Ain't Markup Language) is a human-friendly data serialization standard that's designed to be more readable and writable by humans than JSON. YAML uses indentation to denote structure, making it particularly popular for configuration files in tools like Docker, Kubernetes, and many CI/CD platforms.

When to Use JSON vs. YAML

Use JSON when:

Working with JavaScript or web APIs
You need a format with wide language support
Performance is critical (JSON parsing is typically faster)
You need a strict, unambiguous format

Use YAML when:

Human readability is a priority
Working with configuration files
You need support for comments
Your data has complex hierarchical structures
You want to avoid excessive punctuation

How to Use Our JSON-YAML Converter

Select your conversion direction (JSON to YAML or YAML to JSON)
Paste your input data in the left panel
The converted output will automatically appear in the right panel
Use the copy button to copy the result to your clipboard

Common Use Cases

Converting API responses (typically in JSON) to YAML for configuration files
Transforming YAML configuration files to JSON for systems that require JSON
Learning the differences between JSON and YAML syntax
Debugging data format issues in applications that use both formats
Preparing data for different environments or tools with different format requirements

Frequently Asked Questions

What is the difference between JSON and YAML?

JSON is a lightweight data interchange format that uses a syntax derived from JavaScript. YAML (YAML Ain't Markup Language) is a human-readable data serialization format that's designed to be more readable and writable by humans than JSON. YAML uses indentation for structure, while JSON uses braces and brackets.

Why would I convert between JSON and YAML?

Developers often need to convert between these formats when working with different systems or tools. For example, you might need JSON for an API but prefer YAML for configuration files due to its readability. This tool makes it easy to switch between formats without manual reformatting.

Is the conversion lossless?

In most cases, yes. Both JSON and YAML can represent the same data structures (objects, arrays, strings, numbers, booleans, and null). However, YAML has some features that JSON doesn't support, such as comments and complex types. When converting from YAML to JSON, these YAML-specific features may be lost.

JSON ⟷ YAML Converter

JSON Input

YAML Output

How to use:

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JSON to YAML Converter: Convert Between JSON and YAML Formats