Free CSV to JSON Converter
Turn spreadsheet data into a JSON array of objects — headers become keys and numbers stay numbers.
- 100% free
- No limits
- No upload
- No watermark
- Works on mobile
How to use the CSV to JSON Converter
- 1
Paste CSV
Paste CSV or choose a .csv file.
- 2
Convert
JSON appears instantly.
- 3
Copy or download
Copy it or download a .json file.
Why use Qu-Outil's CSV to JSON Converter
Fast, private and free — with no limits.
Smart parsing
Handles quoted fields, commas inside quotes and different separators.
Instant and private
Everything happens in your browser as you type. Your text is never sent to a server.
Free and unlimited
No sign-up, no limits and no ads in the way. Use it as often as you like.
Works on any device
Fully responsive — works the same on a phone, tablet or computer.
CSV to JSON Converter — frequently asked questions
Does it detect numbers?
Yes — numeric values and true/false become real JSON numbers and booleans.
Is it free?
Yes — free with no sign-up and no limits.
Is my text stored or uploaded?
No. Everything runs in your browser; nothing you type is sent to a server or saved.
Help keep Qu-Outil free
I build and run these tools in my free time and keep them free for everyone — no ads, no sign-up. If they helped you, buy me a chai or coffee via Google Pay or any UPI app. Your support keeps me building more free tools. Completely optional.
samarthdalela@oksbiThe button opens Google Pay, PhonePe or Paytm on your phone. On desktop, scan the QR.
Scan to pay ₹50
Works with any UPI app