YAML to JSON Converter
Convert YAML to JSON in one step — paste your YAML and copy the JSON. Everything runs in your browser, so your data is never uploaded.
More presets
Jump to another preset — each opens its own page ready to go:
How to convert YAML to JSON
- Paste your YAML into the input box.
- The JSON is generated instantly as you type.
- Copy the JSON from the output box.
About converting YAML to JSON
JSON and YAML represent the same structured data in different styles — JSON is the standard for web APIs, while YAML is the readable choice for configuration. Converting YAML to JSON lets you move data into whichever format the next tool expects without rewriting it by hand.
This page converts YAML to JSON entirely in your browser, parsing and re-serializing locally. Your configs and payloads are never uploaded, queued or stored on a server.
Frequently asked questions
How do I convert YAML to JSON?
Paste your YAML into the box and the JSON appears instantly below, ready to copy.
Is the conversion lossless?
Objects, arrays, strings, numbers, booleans and null convert cleanly. YAML-only features such as comments and anchors have no JSON equivalent.
Can I convert the other way too?
Yes — the converter works both ways; switch the direction toggle to reverse it.
Is my data uploaded?
No. The conversion happens entirely in your browser; nothing is sent to a server.