CSV to JSON — Convert CSV Files to JSON
Convert CSV data to JSON format instantly. Handles headers, quotes, and special characters correctly. Free online converter.
Paste CSV data or upload a .csv file and get properly formatted JSON output instantly. Headers become object keys, and the converter handles quoted fields, commas in values, and special characters correctly.
CSV Input
JSON Output
🔒100% Private — Your files never leave your device. All processing runs locally in your browser.
How It Works
Choose CSV→JSON or JSON→CSV mode. Paste your data and click Convert. CSV headers become JSON keys; JSON array of objects becomes CSV with headers.
The converter properly handles edge cases like quoted fields, commas within values, newlines inside quotes, and special characters. It produces clean, valid output in both directions — ready to use in APIs, databases, or spreadsheets.
Features
- ✓Bidirectional: CSV→JSON and JSON→CSV
- ✓Automatic header detection from first row
- ✓Proper CSV escaping (quotes, commas, newlines)
- ✓Valid JSON output with proper types
- ✓Copy output to clipboard with one click
- ✓Handles large datasets efficiently
Frequently Asked Questions
The first row is treated as column headers. Each subsequent row becomes a JSON object with header names as keys.