Split CSV Tool
Split huge CSV files into smaller chunks by row count or number of files. Automatically keeps headers on every split file and bundles them into a ZIP archive.
Drag & drop your file here
or click to browse from your device
How to Split CSV
Upload Big CSV
Select the large CSV file that needs splitting.
Choose Row Limit
Specify how many rows you want per file (e.g. 5,000 rows).
Download ZIP
Download the ZIP archive containing all numbered chunk files.
Key Features
Split large CSV files by custom line count (e.g. 1,000 or 10,000 rows)
Automatically repeats the column header row on every split file
Packages all split files into a single, organized ZIP download
Overcomes upload size limits on mailers, CRMs, and database importers
High speed processing of tens of thousands of rows
100% free with no file limit restrictions
Common Use Cases
Frequently Asked Questions
Yes, the header row from the original file is preserved at the top of every chunk.
Many tools like Mailchimp, HubSpot, and Google Sheets reject CSV files larger than 10MB or 50,000 rows.
Your CSV data is processed temporarily and destroyed upon completion.