CSV Splitter
Split a large CSV into multiple files by row limit. Fast, free, and fully client-side.
Input source
Result / Output
How the CSV Splitter Works
Splits large CSV files into smaller chunk files by number of rows (e.g. 5,000 rows per file) or by unique column values.
Usage Example
Split a 100,000-row dataset into 10 manageable files of 10,000 rows each, preserving headers in all parts.
Frequently Asked Questions
Does every split file include the original header row?
Yes, the original column header is automatically included at the top of each split file.
Browse more
See all CSV tools.