Yes, completely free with no signup required.

Does my data leave my device?

No. All processing happens locally in your browser — nothing is sent to a server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser.

依列数将大型 CSV 切分为多个较小的区块,并分别下载每个区块。

CSV input Rows per chunk

Paste your CSV (with header row) into the text area.
Set how many data rows you want per chunk (e.g., 100).
Click "Split CSV" and download each chunk — every file includes the original header row.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. All processing happens locally in your browser — nothing is sent to a server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser.

Last updated: 2026-05-20 By jarvisbox