JSON / YAML / CSV
Convert JSON data to YAML or CSV format directly in your browser.
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About this tool
The JSON / YAML / CSV converter translates structured data between the three most common interchange formats. Paste JSON and get YAML for configuration files, or flatten nested data into CSV for spreadsheets — conversions are bidirectional and instant.
It's particularly useful when moving data between systems: exporting API responses into CSV for analysis, or turning spreadsheet exports into JSON for an application. All conversion logic runs locally in your browser.
How to use
- 1Paste a JSON array or object into the input panel.
- 2Choose Emit YAML or Emit CSV.
- 3Copy the converted output — note CSV needs an array of objects.
Frequently asked questions
Nested keys are flattened using dot notation (for example address.city), so hierarchical data becomes a clean two-dimensional table without losing structure.