Large CSV Splitter
Split large CSV files into smaller chunks. Set rows per file and download each chunk individually.
CSV Input
💡 Definition
CSV Splitting
- Large CSV files can be difficult to open in spreadsheet software (Excel has a ~1M row limit).
- Splitting divides them into manageable chunks while preserving headers.
📖 How to use
Step by Step
- Paste CSV data or work with large files
- Set the number of rows per chunk
- Each chunk can be downloaded individually
- Headers are optionally included in every chunk
🎯 Use cases
When to use
- Breaking up million-row exports for Excel
- Batch processing large datasets
- Splitting data for parallel processing
- Meeting upload size limits
Frequently Asked Questions
Is the header preserved?▾
Yes, by default the header row is included in every chunk. You can toggle this off if not needed.
What's the maximum file size?▾
Browser-based, so it depends on your device's RAM. Works well up to ~100MB of CSV data.