Free tool · CSV in · ZIP of CSVs out

CSV splitter: smaller files with headers

Set the maximum number of data rows in each output file. Quoted line breaks stay inside their original field, and a selected header is repeated in every part.

Paste the data instead

Choose a file, paste data, or try the example to preview the result.

How it works

  1. ChooseSet the maximum number of data rows in each output file. Quoted line breaks stay inside their original field, and a selected header is repeated in every part.
  2. PreviewCheck the result in the preview before downloading. Input files stay on your device.
  3. DownloadInput is limited to 25 MB and 200,000 cells. The tool creates at most 1,000 output files. Increase the rows per file if you reach that limit.

Questions

Does it split on physical lines?

No. It parses CSV records before splitting, so a quoted cell containing a line break is kept in one record. Each part has at most the selected number of data rows.

Is my file uploaded?

No. The file is read and processed by JavaScript in your browser. No account is needed.

What are the limits?

Input is limited to 25 MB and 200,000 cells. The tool creates at most 1,000 output files. Increase the rows per file if you reach that limit. Text input is limited to 25 MB and tables to 200,000 cells.