CSV to JSON Converter

Convert your CSV data to clean, formatted JSON instantly. 100% client-side, no data leaves your browser.

📊 CSV → 📦 JSON ⚡ Real-time conversion 🔒 100% private 📥 Download JSON

CSV Input

Drag & Drop CSV File

or click to browse

JSON Output

Delimiter:

⚙️ Conversion Options

First row is header

Trim whitespace

Skip empty rows

Auto-detect numbers

Pretty print JSON

Handle quoted fields

Data Preview (First 5 rows)

Frequently Asked Questions

📊 What CSV formats are supported?

Any delimiter (comma, semicolon, tab, pipe), with or without headers, quoted fields, and various line endings (Windows/Mac/Linux).

🔒 Is my data private?

100%! All conversion happens in your browser. Your data NEVER leaves your device. No servers, no uploads.

📦 What JSON format is used?

Array of objects format: [{col1: val1, col2: val2}, ...]. Perfect for APIs, databases, and JavaScript applications.

⚡ How large files can I convert?

Limited only by your browser's memory. Typically works with files up to 100MB smoothly.