Converters

YAML to JSON
Converter.

Convert YAML to JSON format instantly. Transform configuration files and data structures with proper formatting. Free online converter.

Free · No sign-upInstant resultsWorks in browser

Input

Proper indentation and YAML syntax required.

Output

Paste input and click
Convert to JSON to see results.

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About This Tool

What is YAML to JSON Converter?

This tool converts YAML (YAML Ain't Markup Language) to JSON format. YAML is commonly used for configuration files, while JSON is preferred for APIs and data interchange. This converter makes it easy to switch between formats.

How to Use This Tool

  1. Paste your YAML content into the input field
  2. Click "Convert to JSON"
  3. Copy or download the generated JSON
  4. Use "Swap" to convert the JSON back to YAML

YAML vs JSON

  • YAML: Human-readable, uses indentation, supports comments
  • JSON: Machine-readable, strict syntax, widely supported

Common Use Cases

  • Convert Docker Compose files for programmatic use
  • Transform Kubernetes YAML configs to JSON
  • Convert CI/CD pipeline configs (GitHub Actions, GitLab CI)
  • Transform Ansible playbooks for API consumption
  • Convert OpenAPI/Swagger specs between formats
Frequently Asked Questions

What is YAML to JSON conversion?

This tool converts YAML (YAML Ain't Markup Language) configuration files to JSON format, useful for applications that require JSON input.

Are all YAML features supported?

The tool supports standard YAML features including nested objects, arrays, multi-line strings, anchors, references, and common data types using the js-yaml library.

Why convert YAML to JSON?

JSON is more widely supported by APIs and programming languages. Converting YAML to JSON allows you to use configuration files in JSON-only environments.

Is the conversion reversible?

Yes, JSON can be converted back to YAML, though some YAML-specific formatting like comments will be lost during the round-trip.