How to use this tool
- Paste one YAML document containing only JSON-compatible scalar and container types.
- Choose indentation and run Convert YAML to JSON.
- Review the result and diagnostics before copying or downloading.
Private by default
Safe YAML to JSON Converter
Bring configuration-shaped YAML into a predictable JSON-only workflow.
Your data stays in this browser
UTF-8Ln 1, Col 1
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Your data stays in this browserInstantNo server round trips
PrivateBrowser-side processing
AuditableDocumented semantics
PortableCorrectly typed downloads
Category
YAML to JSON: How to use this tool
Convert JSON-compatible YAML Core values to strict JSON with aliases, merges, and custom tags disabled.
Bring configuration-shaped YAML into a predictable JSON-only workflow.
Open guide and examples
Example to try
Input YAML
project: jsonformatters.org features: - format - validate private: true
Result
{
"project": "jsonformatters.org",
"features": [
"format",
"validate"
],
"private": true
}Learn
Frequently asked questions
Is my data sent to a server?
No. The engine runs in your browser and applies local resource limits.
What happens with invalid input?
The tool reports a diagnostic and does not keep stale output.
What does YAML to JSON produce?
It emits strict JSON with strings, numbers, booleans, null, arrays, and objects.
What limitation applies to YAML to JSON?
Aliases, merges, custom tags, dates, and YAML-specific non-JSON values are rejected.