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Split CSV

Free tool to split a large CSV into smaller files of N rows each — downloadable, in your browser.

Learn more: CSV Files ExplainedThe CSV format, RFC 4180 quoting rules, encodings, common pitfalls, and how CSV compares to TSV, JSON and Parquet.

Rows per file

CSV

Runs entirely in your browser — nothing you enter is uploaded or stored.

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Split CSV

Free tool to split a large CSV into smaller files of N rows each — downloadable, in your browser.

All processing happens in your browser — your files never leave the page, which you can confirm from the Network panel or our privacy policy.

Frequently asked questions

How do I use the Split CSV?

Paste your CSV, set the options, and the resulting files appear below to download individually. Everything runs in your browser.

Is my data uploaded anywhere?

No. This tool runs entirely in your browser — your CSV files are never sent to a server.

Is the Split CSV free?

Yes — completely free, no sign-up and no limits.

Split CSV

Frequently asked questions

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