CSV Splitter

Split even very large CSV files into smaller ones. The file stays on your computer: it is never uploaded anywhere.

No upload. All CSV processing happens locally, in your browser. The only network request this page ever makes is a single anonymous counter increment when you finish — no file content, filename, or personal data is ever sent. Verify it yourself: open Developer Tools (F12) → Network tab and process a file.

Drop your CSV file here
or