YAML to JSON Converter

How to Use the YAML to JSON Converter

1. Paste your YAML content into the input box.
2. Click "Convert" to generate the equivalent JSON.
3. Copy the JSON output or download it as a .json file.

How YAML relates to JSON

YAML is actually a superset of JSON in terms of the data it can represent — every JSON document is technically valid YAML. YAML adds a more readable, indentation-based syntax on top, along with features like comments, anchors, and multi-document files that JSON does not support.

What this converter supports

This converter handles the common YAML constructs you'll encounter in most configuration files: nested mappings (indented key-value pairs), lists (using "-"), strings, numbers, booleans, and null. Very advanced YAML features like anchors/aliases, multi-document files, or custom tags are outside the scope of a lightweight browser-based converter — for those, use a full YAML library.

Example

name: Ada
active: true
skills:
  - math
  - programming

{
  "name": "Ada",
  "active": true,
  "skills": ["math", "programming"]
}

Tips

• YAML is indentation-sensitive — use spaces consistently, never tabs.
• Quote strings that could be misread as another type, like "yes", "no", or version numbers like "1.0".

Frequently Asked Questions