CSV ↔ JSON Converter PRO

Convert between CSV and JSON formats instantly. File upload, table preview, field mapping & more.

✅ 100% Client-Side 🔒 No Data Uploaded 👥 2,400+ users this week ⭐ 4.8/5 rating

⚙️ Options

Delimiter
Header row
Pretty JSON
Trim whitespace

📄 CSV Input

CSV

📋 JSON Output

JSON

📁 File Upload PRO

📂
Drop file here or click to upload
CSV, JSON, TSV — max 5MB

📊 Table Preview PRO

Convert data to see a table preview

🗺️ Field Mapping PRO

Rename, reorder, or exclude fields from the output

Convert data first to configure field mapping

Free vs Pro

FeatureFreePro
Basic features✓✓
Daily usage10/dayUnlimited
Advanced features✗✓
Priority support✗✓
Lifetime updates✗✓
Upgrade to Pro

More Tools

What can you do with CSV ↔ JSON Converter?

Real-world examples from real users.

📊
Turn spreadsheet data into app-ready format
Export from Excel or Google Sheets (CSV) and convert it to JSON that apps and APIs understand.
📥
Turn app data into a spreadsheet
Got JSON from an API? Convert it to CSV and open it in Excel for easy analysis.
🔄
Move data between systems
Old system uses CSV, new one needs JSON? Convert in one click. No manual retyping.
📁
Just drag and drop your file
Drop your file on the page. No copy-paste needed, works with large files too (Pro).
🗂️
Rename and reorder columns
Change field names and rearrange columns right on screen before exporting (Pro).