Sign in

YAML to JSON

YAMLJSON
Indent:
{
  "name": "ToolsContainer",
  "version": "1.0.0",
  "features": [
    {
      "name": "YAML to JSON",
      "enabled": true
    },
    {
      "name": "JSON to YAML",
      "enabled": true
    }
  ],
  "database": {
    "host": "localhost",
    "port": 5432,
    "ssl": true
  }
}

✓ Valid YAML — converted successfully

Related Tools

JSON to YAML

Convert JSON data to YAML format for configuration files and documentation.

JSON Formatter

Format, prettify, and validate JSON data with syntax highlighting and error detection.

JSON Validator

Validate JSON syntax and structure. Instantly identify and locate JSON errors.

TOML to JSON

Convert TOML configuration files to JSON format for processing and validation.

XML to JSON

Convert XML documents to JSON format with attribute handling and array detection.

About YAML to JSON

YAML to JSON converts YAML configuration files and data into structured JSON format. This is essential when you need to pass configuration data to APIs, JavaScript applications, or tools that require JSON input. The converter faithfully preserves all data types, nested structures, and array formats while translating YAML's whitespace-based syntax into JSON's bracket notation.

Key Features

  • Parses all YAML 1.2 features including anchors, aliases, merge keys, and multi-line strings
  • Preserves data types such as strings, integers, floats, booleans, null, and dates
  • Handles multi-document YAML files by converting each document into a separate JSON object
  • Outputs properly formatted JSON with configurable indentation
  • Validates YAML syntax and reports parsing errors with line numbers
  • One-click copy and download options for the generated JSON

How to Use YAML to JSON

  1. 1

    Paste your YAML

    Copy the YAML content from your configuration file, Kubernetes manifest, or CI/CD pipeline definition and paste it into the input area.

  2. 2

    Click Convert

    Press Convert to parse the YAML and generate the equivalent JSON representation.

  3. 3

    Review the JSON output

    Examine the generated JSON to confirm that all keys, values, and nested structures have been accurately translated.

  4. 4

    Adjust formatting preferences

    Choose between minified or pretty-printed output depending on whether you need compact JSON for APIs or readable JSON for inspection.

  5. 5

    Copy the JSON

    Click the copy button to grab the JSON data for use in your application, API request, or data pipeline.

Common Use Cases

API Payload Construction

Convert YAML-defined request bodies into JSON payloads for testing REST APIs with tools like Postman, curl, or fetch.

Configuration Validation

Transform YAML config files into JSON so they can be validated against JSON Schema definitions or processed by JSON-based validation libraries.

Cross-Format Data Exchange

Bridge YAML-centric DevOps tools with JSON-consuming applications by converting Ansible inventories, Helm values, or Docker Compose files into JSON.

Why Use Our YAML to JSON

Convert YAML configs to JSON instantly without installing yq, Python, or any local tooling. This converter fully resolves YAML anchors, aliases, and merge keys that trip up simpler tools, and it validates your syntax with clear error messages. Perfect for DevOps engineers who need to quickly transform Helm values or Ansible inventories into JSON for API consumption or schema validation.

Private Format Conversion

YAML to JSON parsing happens entirely client-side with no data sent to external servers. Your Helm values, Ansible inventories, and CI/CD pipeline definitions — often containing environment variables and access tokens — remain completely private. Convert DevOps configurations without any risk of credential exposure.

Learn More

What is YAML?

Frequently Asked Questions

How are YAML anchors and aliases handled?
The converter fully resolves YAML anchors and aliases during parsing. The resulting JSON contains the expanded data with all references replaced by their actual values, so no YAML-specific constructs remain.
Can I convert multi-document YAML files?
Yes. YAML files separated by --- document markers are parsed individually. The output is a JSON array where each element corresponds to one YAML document in the source file.
Does YAML to JSON preserve comments?
No. YAML comments (lines starting with #) are not part of the data model and have no JSON equivalent. They are discarded during conversion. If you need to preserve comments, keep the original YAML file as a reference.

Last updated: April 6, 2026