CSV Splitter & Divider – Break Large CSVs Into Manageable Files
Split CSVs by row count, file size, or column values with header retention and batch downloads for analytics, reporting, or ETL tasks.
⚡Quick Start Examples
Drop CSV file here
or paste data below • Max 10MB
CSV Data
Split Options
Split every N rows
Include headers
Add column names to each file
💡 How it works
- Upload or paste your CSV data
- Choose split method (rows, size, or column)
- Configure options (delimiter, headers)
- Click "Split CSV" — processing happens locally
- Download individual files or ZIP
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› About this tool · FAQ
Split large CSV files into smaller chunks by rows, file size, or column values. Process gigabyte files with smart splitting, header preservation, and batch downloads—all locally in your browser.
What is the maximum file size I can split?
The tool processes files entirely in your browser memory. Most modern browsers can handle files up to 1-2GB, but performance depends on your device RAM and browser capabilities.
Will headers be preserved in split files?
Yes, when "Keep Headers" is enabled, each split file will include the original CSV headers as the first row, maintaining proper column structure.
Can I split files with different delimiters?
Yes, the tool supports comma, semicolon, tab, pipe, and custom delimiters. Auto-detection helps identify the correct delimiter automatically.
How does column-based splitting work?
Column splitting groups rows by unique values in a specified column. Each unique value creates a separate file containing only rows with that value.
Is my data secure when using this tool?
Absolutely. All processing happens locally in your browser. No data is uploaded to servers or stored anywhere outside your device.
Can I download all split files at once?
Yes, enable "ZIP Output" to download all split files as a single ZIP archive for convenient batch downloading.