CSV to JSON Converter — Free & Private
Convert CSV to JSON or JSON back to CSV directly in your browser. Paste your data, click convert, and copy clean JSON or CSV — your data is never uploaded to any server.
How to convert CSV to JSON
Choose your direction — CSV to JSON treats the first row as column headers and builds an array of objects, perfect for turning spreadsheet exports into API-ready JSON.
JSON to CSV does the reverse: paste an array of objects and get a clean CSV you can open in Excel or Google Sheets.
- Pick CSV → JSON or JSON → CSV
- Paste your data
- Click Convert and copy the result
Private, in-browser conversion
Everything runs locally in your browser with your own device. No upload, no server, no storage — so you can safely convert even sensitive datasets.
Frequently Asked Questions
Does the CSV to JSON converter handle quoted fields?
Yes — it parses quoted fields, commas inside quotes, and multi-line values correctly.
Can I convert JSON back to CSV?
Yes — switch to JSON to CSV mode and paste an array of objects to get CSV output.
Is my data uploaded?
No. All conversion happens locally in your browser; nothing is ever sent to a server.