Split CSV File Online

This tool splits a CSV into smaller files of the row count you choose, so a large export fits an upload limit or a batch process. The header row can be repeated in every part.

Download each part individually or all at once; nothing is uploaded to do the split.

Splitting a spreadsheet that holds customer or financial data on a random website means uploading it first. Here the split happens locally, so the file never leaves your machine.

There is no size cap beyond your device's memory, and no sign-up.

Every conversion happens locally in your browser, so your data is never uploaded, logged or stored on a server. You can use it on confidential exports without a second thought, and it keeps working offline once the page has loaded.

There is no sign-up, no watermark and no row limit: the only ceiling is your device's memory.