Data Format Converter

Convert data between JSON, YAML, and CSV formats for config files and data exchange.

About this tool

Converts data between JSON, YAML, and CSV — the three formats you'll most often need to move between when working with config files, API responses, and spreadsheets.

How to use it

1. Paste your data and select its source format (JSON, YAML, or CSV).
2. Select the target format you want to convert to.
3. Click Convert, then copy the result — or use the swap button to reverse the conversion direction.

FAQ

Does converting to CSV work with nested JSON objects?

CSV is inherently flat (rows and columns), so deeply nested JSON structures may not convert cleanly — it works best with arrays of flat objects, which map naturally to CSV rows.

Is my data sent to a server for conversion?

No, all format conversion happens client-side in your browser using JS libraries loaded into the page.