JSON to YAML Converter

Convert JSON to YAML

Example Presets:

Input JSON:

YAML Options:

Use Single Quotes

Use Flow Style for Arrays

Indent Size:

Display Options:

Include YAML Comments

Show Explicit Types

Skip Null Values

Sort Object Keys

JSON vs YAML Quick Reference

Format Comparison

Feature	JSON	YAML
Syntax	Uses brackets and braces: `{}, []`	Uses indentation for nesting
Strings	Always requires double quotes: `"string"`	Quotes often optional: `string`
Comments	Not supported	Supported with `#`
Arrays	`["item1", "item2"]`	`- item1 - item2`
Nested Objects	`{"parent": {"child": "value"}}`	`parent: child: value`
Multi-line Text	Requires escaping newlines	Supports block scalars `\|` and `>`

YAML Special Characters

Character	Purpose
-	Denotes list items
:	Separates key-value pairs
#	Starts a comment
\|	Literal block scalar (preserves newlines)
>	Folded block scalar (converts newlines to spaces)
&	Anchors a value for reference
*	References an anchor

About JSON to YAML Converter

A JSON to YAML Converter is a tool that transforms JSON (JavaScript Object Notation) data into YAML (YAML Ain't Markup Language) format. While both JSON and YAML are widely used for configuration files and data serialization, YAML is often preferred for its readability and simplicity. Converting JSON to YAML helps developers, DevOps engineers, and system administrators maintain well-structured configuration files that are easier to edit and manage.

JSON follows a strict syntax with brackets and commas, whereas YAML uses indentation for nesting. A conversion tool ensures seamless transformation while preserving data integrity and structure.

Core Capabilities

Automatic JSON to YAML Conversion: Transforms JSON objects, arrays, and key-value pairs into properly indented YAML.
Preserves Data Hierarchy: Ensures accurate nesting and relationships between objects.
Whitespace and Formatting Adjustments: Eliminates unnecessary characters for cleaner YAML output.
Supports Large Data Structures: Handles deeply nested JSON without loss of data.
Cross-Platform Compatibility: Works in web browsers and across multiple operating systems.

Common Use Cases

Simplifying Configuration Files

Many modern applications and infrastructure tools use YAML for configuration because of its clean, human-readable format.

Example

JSON Input:

{
    "database": {
        "host": "localhost",
        "port": 5432,
        "username": "admin"
    }
}

Converted YAML Output:

database:
    host: localhost
    port: 5432
    username: admin

Converting API Responses to YAML

APIs often return JSON responses, but some applications require YAML for documentation or processing.

Example

JSON Input:

{
    "status": "success",
    "data": [
        { "id": 1, "name": "Alice" },
        { "id": 2, "name": "Bob" }
    ]
}

Converted YAML Output:

status: success
data:
    - id: 1
      name: Alice
    - id: 2
      name: Bob

Managing Infrastructure as Code (IaC)

Infrastructure provisioning tools like Kubernetes and Ansible use YAML for configurations. Converting JSON to YAML helps developers work with these tools efficiently.

Example

JSON Input (Kubernetes Deployment):

{
    "apiVersion": "apps/v1",
    "kind": "Deployment",
    "metadata": {
        "name": "web-server"
    },
    "spec": {
        "replicas": 3
    }
}

Converted YAML Output:

apiVersion: apps/v1
kind: Deployment
metadata:
    name: web-server
spec:
    replicas: 3

Troubleshooting & Best Practices

Ensure Valid JSON Before Conversion

Syntax errors in JSON can cause conversion failures.

Use Consistent Indentation

YAML relies on indentation rather than brackets, so ensure correct spacing.

Avoid Unnecessary Quotation Marks

YAML does not require double quotes unless special characters are present.

Check for Boolean and Null Values

JSON represents true, false, and null differently, so confirm the correct conversion.

How to Use the JSON to YAML Converter

Paste or Upload JSON Data: Insert JSON text or upload a JSON file.
Click Convert: Instantly transform JSON into YAML.
Copy or Download YAML Output: Use the formatted YAML for configuration files or documentation.
Validate Output: Ensure proper indentation and structure for YAML-based applications.

Specifications

Supported Input Format: JSON (UTF-8 encoded, including nested objects and arrays).
Output Format: YAML with proper indentation and key-value mapping.
File Size Limitations: Supports large JSON files up to 10MB.
System Compatibility: Works on Windows, macOS, Linux, iOS, and Android.
Browser Requirements: Compatible with Chrome, Firefox, Safari, and Edge.