Free digital tool
CSV to JSON Converter
Convert CSV to JSON or JSON back to CSV instantly, right in your browser.
Runs locally in your browser. No uploads, no signup, no data leaves your device.
Why use this?
CSV is the universal format for spreadsheets and exports; JSON is the universal format for APIs and web apps. This converter bridges them so you can move data between Excel or Google Sheets and developers, dashboards, or scripts without fiddly manual reformatting.
Quick tips
- CSV → JSON uses the first row as object keys when header mode is on.
- JSON → CSV works best with an array of objects; keys become the header row.
- Both directions run 100% locally — sensitive spreadsheets never leave your device.
- Bookmark this tool if you move data between sheets and JSON regularly.
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