Split CSV

Split large CSV files into smaller files by row count or file size.

Drop your file here or click to browse

Maximum file size: 50.0 MB

Accepted: .txt, .csv, .tsv, .log, .md, .json, .xml, .html, .css, .js, .ts

Features

  • ✓Split by row count
  • ✓Split by file size
  • ✓Keep headers
  • ✓Batch download
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Split large CSV files into smaller, manageable chunks by row count or file size. Ideal for handling data that's too large for spreadsheet applications, databases, or email limits. Automatically preserves headers across all split files.

How it works

  1. 1Upload your CSV file to the tool
  2. 2Choose split method: by row count or file size
  3. 3Download all split files as a batch

Who uses this tool

  • ✓Data analysts processing large datasets for analysis
  • ✓Database administrators importing data in batches
  • ✓Developers handling API limitations on file size
  • ✓Marketing teams splitting customer data for campaigns
  • ✓Anyone sharing files via email with size restrictions

Frequently Asked Questions

How do I use Split CSV?
Upload your CSV file, specify how to split it (by row count or by column value), then download the separate files as a ZIP.
Is Split CSV free?
Yes, Split CSV on ToolPix is 100% free with no signup or installation required.
Is my data safe?
All processing happens in your browser, your data never leaves your device.
What split methods are available?
Split by row count (e.g., every 1000 rows), by column value (e.g., one file per country), or at specific row numbers.
Does each split file include the header row?
Yes — the header row is automatically copied to each split file so each one is independently usable.

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