Split by Rows
Set how many rows go in each file, ideal for staying under upload or import limits.
CSV Splitter
Split one large CSV into several smaller files, by rows per file, number of files, or a column value. The header is kept in each. Free, no signup, nothing uploaded.
Guide
How to split a CSV file
1
Open Your CSV
Drag and drop a .csv file or click to choose one. It is read right in your browser.
2
Choose How to Split
Split by a set number of rows per file, into a number of equal files, or into one file per value in a column.
3
Download the Pieces
Download each file on its own, or grab them all at once in a single ZIP.
Break a Big CSV Into Manageable Files
Large CSV files are awkward. Many tools and import forms cap how many rows you can upload at once, spreadsheets slow down, and sharing one giant file is clumsy. Splitting it into smaller pieces fixes all of that.
This splitter gives you three ways to do it. Set a number of rows per file to stay under a limit, choose how many files you want and let it divide evenly, or split by a column so every distinct value, like a category or a date, lands in its own file. The header row is copied into each output, so every file is ready to use on its own.
The split happens in your browser, so the data never leaves your device. Download each file separately or all of them in a ZIP.
Benefits
Why Use Our CSV Splitter?
Split by Count
Break the file into a set number of equal parts in one step.
Split by Column
Make one file per distinct value in a column, like a separate file per category or region.
Keeps the Header
The header row is added to every output file so each one opens cleanly on its own.
Single or ZIP
Download each piece separately or all of them together in a ZIP.
Runs in Your Browser
Your file is split on your device. Nothing is uploaded, logged, or stored.
Explore More
Similar Tools
More File tools you might find useful.
FAQ
Frequently Asked Questions
Common questions about splitting CSV files.
How can I split a CSV file?
Open the file, then pick how to split it, by rows per file, by number of files, or by a column value, and download the resulting files.
Does each file keep the header row?
Yes by default. The header is added to every output file so each one opens correctly on its own. You can turn this off if you prefer.
What does splitting by a column do?
It puts every row with the same value in that column into its own file, for example one file per category, status, or region.
Can I download them all at once?
Yes. Download each file individually, or get all of the pieces together in a single ZIP.
Is there a size limit?
There is no fixed limit, but very large files use more memory since everything is processed in the browser.
Is my file uploaded anywhere?
No. The file is read and split entirely in your browser. Nothing is uploaded, logged, or stored on a server.