CSV Splitter
Split large CSV files into smaller chunks by row count. Download each chunk separately with the header row included.
About CSV Splitter
Dealing with a CSV file too large to import? Split it into smaller, manageable chunks. Set the number of rows per chunk (50, 100, 250, 500, 1000, or custom), and the tool creates multiple CSV files each containing a portion of the data. Optionally include the header row in each chunk. Download individually or all at once.
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Your privacy is built in
Everything in CSV Splitter runs locally in your browser — your data never leaves your device and is never uploaded to a server, so nothing you enter is stored or seen by anyone else. No account, no sign-up, no watermark, and completely free.
Frequently asked questions
Is the header row included in each chunk?
Yes by default — the header row is repeated at the top of each chunk file so each can be used independently.
Is there a file size limit?
No hard limit — the tool runs entirely in your browser so performance depends on your device memory.