CSV to JSON Converter Tool

File Conversion

Convert CSV to JSON instantly with our free online tool that supports drag-and-drop file uploads and direct pasting. Perfect for developers, data analysts, and anyone working with CSV files.

How to Use CSV to JSON Converter Tool

This simple tool converts CSV (Comma-Separated Values) data into properly formatted JSON. Follow these steps to convert your CSV data. Upload a CSV File or Simply drag the CSV file from your computer and drop it onto the upload area. Alternatively, Paste CSV Content. The converted JSON will automatically appear in the output area at the bottom of the screen. Click the "Copy" button to copy the JSON to your clipboard for use in other applications.

Frequently Asked Questions

How can I handle CSV files with nested data structures?

Our converter supports dot notation in CSV headers (e.g., "user.name", "user.email") to automatically generate nested JSON objects, and array notation (e.g., "tags[0]", "tags[1]") for array creation from your flat CSV data.

Can I customize the JSON output format?

Yes, our advanced options allow customizing field mapping, data types (automatically convert numbers, booleans, and dates), pretty-printing with adjustable indentation, and choosing between array of objects or object with keyed items.

How does the converter handle special characters and encoding?

Our tool automatically detects and preserves UTF-8 encoding, properly escapes special characters, and handles quotation marks in CSV fields. You can also manually select alternative encodings for international character support.