YAML to JSON Guide

YAML and JSON are two ways to write structured data. Both can hold names, values, and lists. YAML uses indentation to show what belongs together; JSON uses braces and square brackets. YAML to JSON translates between those forms.

Convert a short list

Open the tool and paste this into YAML:

name: Ana
tags:
  - editor
  - reader

The JSON box should show:

{
  "name": "Ana",
  "tags": [
    "editor",
    "reader"
  ]
}

The two spaces before each - in YAML put editor and reader under tags. In JSON, square brackets [ ] show they form a list. The data is still there even though the punctuation looks different. Use Copy if you need to paste the JSON into another program.

If the result is missing or wrong

Check the indentation: a line at the wrong level can change which item it belongs to. If parsing fails, read the error near the input before changing several lines at once. A successful conversion only means the file could be read; it does not prove the receiving application accepts those field names or values.

YAML has features JSON cannot keep exactly, such as comments and aliases. Keep the original YAML if you need those later. Review the converted result before replacing a configuration file.

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.