JSON and YAML can hold the same simple data in different-looking text. JSON uses braces and square brackets; YAML often uses indentation and dashes. JSON to YAML reads the JSON first, then writes the data as YAML.
Convert a name and a list
Paste this into JSON:
{"name":"Ana","tags":["editor","reader"]}
Look in YAML for name: Ana, then a tags: line with - editor and - reader below it. The exact spacing is chosen by the YAML writer, but tags should still contain two values. Use Copy or Download if you need the result in another file.
If it does not convert
Check the JSON first. For example, {name:"Ana"} is not valid JSON because name needs quotation marks. The tool cannot fix invalid input or decide whether the YAML keys are right for your application. After converting configuration, review the output before replacing a working file.
This converts data, not comments: standard JSON has no comments to bring over. For nested data or unfamiliar values, compare the output with the original rather than assuming a different-looking result means the same thing.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Working With Structured Data.
Questions you might have
- Are comments kept?
- JSON has no comments, so converting JSON to YAML cannot invent any. Going the other way, YAML comments are dropped because JSON has nowhere to put them.
- Why does my document fail to convert?
- This tool parses JSON input, not YAML. A missing quote or comma in JSON can cause an error. YAML-only features such as anchors are not valid input here; start with valid JSON instead.