How to Use YAML ↔ JSON Converter
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1. Paste YAML or JSON
Enter your YAML or JSON data into the input panel.
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2. Choose the Conversion Direction
Select YAML → JSON or JSON → YAML using the direction toggle.
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3. Copy or Download the Result
The converted output appears right away. Copy it or download it as a file.
The Technical Details
This interactive web utility provides fast, reliable, and completely private data transformations. In modern workflows, quick formatting, conversions, or estimations are essential. By running all logic entirely in your browser with client-side JavaScript, this tool guarantees that your data never leaves your machine. This approach delivers maximum performance and absolute data privacy, as no information is ever sent to a server.
Frequently Asked Questions
Are YAML anchors and aliases supported?
Yes. YAML anchors (&) and aliases (*) are resolved during parsing and the referenced values are inlined in the output.
How are multiline strings handled?
YAML literal block scalars (|) and folded scalars (>) are preserved and converted to JSON strings with newlines or spaces respectively.
Is any data sent to a server?
No. All conversion runs in your browser; nothing is ever uploaded.
Does it output strict JSON?
Yes. The JSON output uses strict double-quoted keys and values, with no trailing commas or comments.