Split Large CSV Files into Parts
Break huge CSV files into smaller, Excel-ready parts in seconds.
Split Large CSV
Drop CSV file here or click to browse
Ideal for files too big for Excel or Google Sheets
Each part will keep the header row plus this many data rows. Use 500–1,000 for Excel compatibility.
Split Parts
Split parts will appear here with individual download buttons
Split CSV Files – Fast & Free
Hitting Excel's row limit or struggling to open a multi-GB export? Our CSV splitter cuts your file into smaller parts while keeping the header row in every piece, so each part opens instantly and stays fully usable.
Choose the rows-per-part size that fits your workflow (1,000 is ideal for Excel), and download each part individually. Everything runs in your browser — your data never leaves your device.
How to Split a CSV File
Our tool makes it incredibly easy to work with your data files.
Upload CSV
Drag and drop your .csv file, or click to browse and select it.
Set Part Size
Choose rows per part — 1,000 rows is the Excel-safe default. The header is repeated in every part.
Download Parts
Every part gets its own download button, named part-1, part-2, and so on.
Why Use Our CSV Splitter?
No Size Limits
Split files of any size — even multi-GB exports.
Excel-Safe Chunks
1,000-row default keeps every part well under Excel limits.
100% Private
Files never leave your device — zero uploads, zero storage.
Header in Every Part
Each part is a complete, usable CSV with its header row.
Portal-Ready
Split files fit upload limits on job and data portals.
Fully Free
No signup, no watermark, no limits — use it as much as you need.
Frequently Asked Questions
Common questions about this tool
How do I split a CSV file?
Upload your .csv file, choose how many rows you want per part (1,000 is the Excel-safe default), and click "Split CSV". Every part keeps the header row and gets its own download button.
Why would I split a large CSV?
Excel caps out around 1,048,576 rows and struggles with huge files. Splitting into 1,000-row chunks makes data manageable, uploadable to portals, and quick to open on any machine.
Is splitting CSV free?
Yes, completely free with no file size limits and no registration required.
Is my data safe?
Yes. Splitting happens entirely in your browser — your file never leaves your device and nothing is stored on a server.
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