Drop your CSV files here
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Maximum file size: 100 MBWhy Convert CSV Files?
The CSV format (Comma-Separated Values) is one of the simplest and most widely used ways to store tabular data. It's lightweight, human-readable, and easy to import into databases, applications, or analytics tools. Because of this simplicity, CSV files are popular for exchanging data across different platforms.
But CSV also comes with limitations. It doesn't support formulas, styling, or multiple worksheets, and large files can become difficult to manage. Sharing CSVs with non-technical users can be inconvenient since they often expect data in more structured formats like Excel or PDF.
That's why many people convert CSV files into other formats. Converting to XLSX adds advanced spreadsheet functionality, while converting to PDF makes reports easier to share in a fixed, readable layout. In some cases, converting CSV to JSON or XML makes the data more suitable for web applications and APIs.
Free Online CSV Converter
Convert your CSV files to XLSX, XLS, ODS, TSV, and over 4 other formats instantly. Our free CSV converter works in your browser for complete privacy — no registration required.
- Convert multiple CSV files at once (batch processing)
- Maintain original quality with smart compression
- 100% secure — files never leave your device
- Support for 4+ output formats
- Instant download — no waiting
- Works on all devices and browsers
Supported CSV Conversions
You can convert CSV to:
Frequently Asked Questions
How do I convert CSV online?
Upload your CSV files, select XLSX, XLS, ODS or any other format from the dropdown menu, and click convert. Your files will be ready for download instantly.
Can I convert multiple CSV files at once?
Yes! Upload multiple CSV files and they'll all be converted simultaneously. Large batches are automatically packaged as a ZIP file for download.
Is the CSV converter free to use?
Absolutely — our CSV converter is 100% free. No registration or payment required.
Is CSV conversion secure?
Yes, all CSV conversions are processed securely in your browser. Your files are never uploaded to our servers and remain completely private on your device.