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Large CSV Row Splitter
Split a large CSV or text file into downloadable parts by data-row count directly in your browser.
GUIDE
How to use Large CSV Row Splitter
Split a large CSV or text file into downloadable parts by data-row count directly in your browser. The tool is available directly in your browser with no account required.
- 1. Enter the required value, text, or file in the tool above.
- 2. Adjust any available options and run the tool when needed.
- 3. Review the result and copy or download it if the tool provides that option.
DETAILS
Split a large CSV by data-row count
The file is read progressively as a browser stream. Each chosen number of rows becomes a separate downloadable CSV, optionally repeating the first header row.
Example
A 230,000-row file split at 50,000 rows produces five parts.
Good to know
Quoted cells containing real line breaks may not be handled correctly by simple row splitting.
Frequently asked questions
Can it process a 100 MB file?
Streaming reduces the initial memory spike, but generated parts still use browser memory. Use smaller parts on low-memory devices.
Can every part keep the header?
Yes. Enable the repeat-header option.
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