Free CSV to JSON Converter - Instant & Offline
Convert CSV data to JSON format instantly. Free, client-side, and secure.
Input
CSVOutput
JSONYour converted output will appear here
How to Use Free CSV to JSON Converter - Instant & Offline
The parser reads your CSV, uses the first row as headers (keys), and converts each subsequent row to a JSON object. Values are automatically typed where possible.
🔒 Privacy First: This tool runs entirely in your browser. Your data never leaves your computer.
Common Use Cases
- Import spreadsheet data into JavaScript applications
- Convert Excel exports to JSON for web APIs
- Transform data files for NoSQL database imports
- Parse log files for analysis in code
Free CSV to JSON Converter - Instant & Offline FAQ
Paste your CSV data or upload a CSV file. The tool automatically detects headers and converts each row to a JSON object.
Yes! The converter properly handles quoted fields, including fields with commas and newlines inside quotes.
The tool auto-detects common delimiters like comma, semicolon, and tab. It will use the most likely delimiter for your data.
Yes, you can convert the JSON back to CSV using our JSON to CSV converter.