CSV Splitter Tool

Splitting a CSV file with a script means writing and testing code every time the requirements change slightly, a different row count, a different column to split on, a different output format. A dedicated tool turns that into a point-and-click workflow that doesn't require touching a line of code.

Turbo CSV Splitter splits CSV files automatically once you've chosen a split method and its setting. There's no format picker, because the app works with CSV only, nothing to choose, nothing to misconfigure, and delimiter and encoding both default to Auto, detected from the file itself.

Nine split methods cover a wide range of automatic splitting needs: Number of Rows, File Size, Column Value, Date Column, Alphabet, Duplicate Values, Unique Values, Equal Parts, and Random Shards, each requiring just a single setting to configure, rows per file, target MB, the column to split on, and so on.

Column tools, filters, sorting, and deduplication can all be applied automatically as part of the same split, so a file that needs cleaning up before it's divided gets both steps handled in one automated pass rather than a separate cleanup step beforehand.

Once configured, clicking Start Split runs the whole process automatically, with a status bar showing live progress, speed in rows per second, and an ETA, and Open Output Folder taking you straight to the results when it finishes.

Everything runs offline, entirely on your own Windows PC, so automatically splitting a CSV file never requires uploading it to an external service. Delimiter and encoding both default to Auto and are detected directly from the file itself, so you only need to touch them in the rare case detection gets something wrong, an unusual delimiter or a legacy encoding, for example. This makes the tool equally useful for data analysts working with irregular exports, developers automating a recurring pipeline step, e-commerce teams distributing catalog data by category, and anyone else who regularly runs into the practical limits of opening a large CSV file directly in a spreadsheet program.

1. Install Turbo CSV Splitter on your Windows PC.
2. Browse to or drag and drop your CSV file.
3. Choose your output folder.
4. Choose one of the nine split methods and its setting.
5. Add column tools, filters, or deduplication if needed.
6. Run Preview to confirm the setup.
7. Click Start Split and let the tool process automatically.
8. Open the output folder once the split completes.
9. Adjust the parallel worker slider (1-128) if compressing many output parts.
10. Check the status bar for the final row count and file count summary.

• Point-and-click workflow, no coding required
• Nine split methods, each configured with one setting
• Auto-detected delimiter and encoding
• Column tools, filters, and deduplication applied automatically
• Live progress with speed and ETA
• Open Output Folder takes you straight to results
• Runs fully offline with no uploads required
• One-time purchase for Windows, with Gumroad license activation
• Compression options: uncompressed, per-part ZIP/gzip, or a single bundled archive
• Works with files on local drives, external drives, and network shares