JSON to YAML Converter

Turn JSON into clean, readable YAML — objects become mappings, arrays become sequences, indentation is handled for you. Choose the indent, sort keys, then copy or download. Runs in your browser; nothing is uploaded.

How to Convert JSON to YAML

Three steps, all in your browser.

1

Paste or load your JSON

Paste JSON text into the box, or click “Load .json file” to open an export or API response. The tool converts as you type — no button to press.

2

Pick your options

Choose 2- or 4-space indentation and, if you want a stable diff-friendly file, turn on Sort keys to order every mapping alphabetically. Need the reverse? Use the YAML to JSON Converter.

3

Copy or download

The YAML appears in the output box. Hit Copy YAML to send it to your clipboard, or Download .yaml to save a file. Nothing is uploaded — it all happens on your device.

Frequently Asked Questions

How do I convert JSON to YAML?
Paste your JSON into the input box, or load a .json file. The tool converts it to YAML instantly as you type. Objects become mappings, arrays become sequences, and nested structures are indented for you. Choose 2- or 4-space indentation, optionally sort keys alphabetically, then click Copy YAML or Download .yaml.
Is my data uploaded anywhere?
No. The conversion runs entirely in your browser with JavaScript. The JSON you paste or the file you load is parsed on your own device and is never sent to a server, logged, or stored. That means you can safely convert private exports, API responses, or internal config, and the tool keeps working offline once the page has loaded. Closing or refreshing the tab clears everything.
Why is YAML easier to read than JSON?
YAML drops the braces, brackets, and most quotes that JSON requires, using indentation to show structure instead. That makes configuration files shorter and easier to scan and edit by hand, which is why tools like Docker Compose, Kubernetes, and GitHub Actions use YAML. Because YAML is a superset of JSON, any valid JSON converts cleanly to an equivalent YAML document with the same data.
Can I sort the keys alphabetically?
Yes. Tick the Sort keys option and every mapping in the output is ordered alphabetically by key. This is handy for producing a stable, diff-friendly file so that two exports of the same data line up regardless of the order the keys appeared in the original JSON. Leave it unchecked to keep the original key order.
What if my JSON is invalid?
The tool validates the JSON before converting and shows the exact parser message if something is wrong — for example a trailing comma or an unquoted key. Fix the reported problem and the YAML appears immediately. If you need help locating the error by line and column, run the text through the JSON Formatter first.

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