SmartTools

CSV Splitter

Split a CSV file by row count or unique column values.

CSV Splitter

Split one CSV into multiple files by row count or unique column values.

Upload CSV

Upload your file or drag and drop it into the area below.

Drag & drop your CSV here

or click to browse files

File Summary

File name
No file uploaded
Total rows
0
Detected columns
0
Estimated output files
0

Split Options

This will create approximately 0 output file(s).

Free Online CSV Splitter Tool

This CSV splitter tool allows you to split large CSV files into smaller files easily. You can split files by row count or by unique column values. It works directly in your browser, ensuring your data remains private and secure.

How to use this tool

  1. Upload your CSV file using the upload area or drag and drop.
  2. Choose whether to split by rows or by column values.
  3. Set the number of rows per file or select a column.
  4. Click the split button to process the file.
  5. Download all split files in a single ZIP archive.

Frequently Asked Questions

Is this CSV splitter free to use?

Yes, this tool is completely free and can be used without any limitations.

Does this tool upload my data to a server?

No, all processing happens in your browser. Your data is never uploaded.

What is the maximum CSV size supported?

It depends on your browser and device memory. Large files (10MB+) should work on modern systems.

Can I split CSV files by column values?

Yes, you can split the file based on unique values in any selected column.

How it works

  • Upload a CSV file with headers.
  • Choose whether to split by row count or a column value.
  • Review the preview and estimated file count.
  • Download all generated CSV files in one ZIP archive.

Related Tools

How to use

  • Upload your file or enter input
  • Choose required options
  • Click process button
  • Download result