YAML ↔ JSON Converter
Convert YAML to readable JSON, or turn JSON into clean YAML. Check nested data without uploading a file.
How do I convert YAML to JSON?
Paste a YAML document and choose To JSON. The tool turns its keys, lists and values into formatted JSON. Copy or download the result. Choose From JSON to convert in the other direction. Comments and YAML layout are not kept in JSON.
Your result
A little clarity, right here.
Start with your own content or load the example. Your result will appear here.
Three simple steps
How to use YAML ↔ JSON Converter
Paste your content or choose a supported file.
Adjust the options, then run the tool.
Review the result and copy or download it.
Common questions
Good to know
Understand the result.
Keep the original.
Is this tool free, and are my files uploaded?
This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.
What are the limits and details?
Comments, anchors, and presentation styles are not preserved in JSON. Duplicate YAML keys and excessive aliases are rejected.
Limits: 500,000 characters per text field; files up to 20 MB each, 10 files and 50 MB total. Processing stops after 30 seconds.