Split large CSV files into smaller chunks online

Effortlessly split massive CSV datasets into manageable files by row count. Keep headers intact across all parts with instant zip download.

How to Split large CSV files into smaller chunks

1. Step 1. Upload or drag and drop your CSV dataset.
2. Step 2. Specify the maximum number of rows per split file.
3. Step 3. Choose whether to keep header rows and click Split CSV.
4. Step 4. Download individual split CSV files or grab all parts in a single ZIP.

Frequently asked questions

Is my CSV data uploaded to your servers?

No. The CSV splitting engine runs 100% client-side in your browser for maximum data privacy.

Will the header row be included in every split file?

Yes, if you keep the "Include header row" option checked, the original column names are copied to every chunk.