CSV splitter
Split a large CSV into smaller files with the number of rows you choose. The header row can be repeated in every part. Nothing is uploaded.
Why split a CSV
Sending tools, CRMs and email verifiers often cap how many contacts you can import in one go. Splitting a list into equal parts also makes it easier to spread sending across several mailboxes.
Safe with quotes and line breaks
The splitter reads quoted fields properly, so a record with a comma or line break inside quotes is never cut in half.
CSV splitter FAQ
What does the CSV splitter do?
It cuts a large CSV into several smaller files with a number of rows you choose. This helps when a sending tool or CRM limits how many contacts you can import at once.
Will the header row be kept in every file?
Yes, by default the first row is repeated at the top of each part. You can switch that off if your file has no header.
Is my file uploaded?
No. The file is read and split in your browser and never leaves your device.
Does it handle commas and line breaks inside quotes?
Yes. The splitter understands quoted fields, so a record that contains a comma or a line break inside quotes is never cut in half.
How do I get all the parts at once?
Use Download all as ZIP. You can also download each part separately.