Split CSV Files Instantly

Split large CSV files into smaller chunks by rows, number of files, or unique column values. 100% free, secure, and runs entirely in your browser.

Upload CSV File

Drag & drop your CSV file

or click to browse

Supports files up to 100MB

Download Results

Ready to Split Your CSV

Upload your CSV file and configure split options to get started. Your processed files will appear here.

Easily Split Large CSV Files

Our free CSV Splitter tool allows you to divide large CSV files into smaller, more manageable chunks without uploading your data to any server. All processing happens securely in your browser.

Why Split CSV Files?

Large CSV files can be difficult to work with for several reasons:

  • Compatibility issues with older software or systems
  • Performance problems when opening in spreadsheet applications
  • Easier data management by breaking into logical segments
  • Sharing convenience when file size limits exist
  • Processing efficiency for specific data subsets

How to Use This Tool

  1. Upload your CSV file using the drag and drop area
  2. Choose your split method (by rows, chunks, or column values)
  3. Configure your split options based on the method selected
  4. Process your file with the click of a button
  5. Download your split files individually or as a ZIP archive

Key Features

  • 100% browser-based - No data leaves your computer
  • No file size limits - Process extremely large CSV files
  • Multiple split methods - Choose the approach that fits your needs
  • Fast processing - Optimized for performance
  • Free to use - No registration or payment required

Frequently Asked Questions

Is my data secure?

Absolutely! This tool runs entirely in your browser. Your files never leave your computer and are not uploaded to any server.

What is the maximum file size I can process?

There are no fixed limits, but extremely large files may take longer to process depending on your device's capabilities.

Can I split CSV files by specific column values?

Yes! Choose the "By Column" option and select the column you want to split by. Each unique value will create a separate file.

What browsers are supported?

This tool works on all modern browsers including Chrome, Firefox, Safari, and Edge.