Does this tool support complex YAML?

No. This tool converts simple flat key:value lines only. Nested YAML, anchors, and tags are not supported.

Is my YAML uploaded to a server?

Conversion runs in your browser. Avoid pasting secrets. See our privacy policy for details.

YAML to JSON Converter

Convert YAML config files into JSON for tools and automation.

Paste simple YAML:

Output

Processes input in your browser Privacy policy

About this tool

This tool converts YAML into JSON, making it easy to reuse infrastructure configs, app settings, and other YAML-based files inside JavaScript or JSON-first environments.

How to use this tool

Paste your YAML into the input area.
Click Convert.
Review the JSON output.
Copy the JSON for use in your app or scripts.

Examples

user: alice
active: true

?
{
  "user": "alice",
  "active": true
}

Limitations

This converter handles simple flat YAML-style key:value lines. It does not support multi-document YAML, anchors, aliases, tabs, or deeply nested structures. For complex configs, validate output carefully or use a full YAML parser in your project.

FAQ

Does this tool support complex YAML?: No. This tool converts simple flat key:value lines only. Nested YAML, anchors, and tags are not supported.
Is my YAML uploaded to a server?: Conversion runs in your browser. Avoid pasting secrets. See our privacy policy for details.

Common use cases

Preview simple config snippets as JSON.
Convert flat key:value lines for JavaScript tooling.
Quickly inspect small YAML fragments during development.

Privacy note

This tool is designed to process input directly in your browser. Do not paste passwords, private keys, or highly sensitive data into any online tool unless you fully understand how it processes data. See our privacy policy.

Last updated: July 2026