Split CSV File — free online tool
You open a spreadsheet export and it has a hundred thousand rows. Something chokes on it, or you only need to send a part of it, or a tool you use refuses files that big. Cutting it up by hand is a nightmare. We added a free tool that does it for you — Split CSV File — right in your browser.
What it does
It takes one big CSV and splits it into smaller ones. You choose how: by a number of rows per file, or by how many files you want it broken into. Each piece comes out as its own CSV, ready to use.
Nothing leaves your device
The whole thing runs inside your browser. Your file is never uploaded to a server and nothing is saved anywhere. When you close the tab, it's gone — your data stays with you.
How to use it
- Open Split CSV File and pick your CSV file.
- Choose how to split it — by rows per file, or by number of files.
- Download the smaller files.
It's free with no limit. There are more small tools on the Apps page.