CSV Splitter (Privacy First)

Divide large CSV files by row count or group by column values.

Click to Upload CSV (or drag & drop)

Split by Rows

Chunks of X rows (e.g., 500)

Split by Column

Group by Value (e.g., "City")

Rows per File

About This Tool

The CSV Splitter solves the problem of "Too Big to Open." Excel often crashes with files over 1M rows, and many import tools have file size limits (e.g., 50MB). This tool breaks your file into smaller pieces locally.

Key Benefits:

Streaming Technology: Can handle files larger than your RAM.
Smart Splitting: Keeps the header row in every split file.
Organized Output: Downloads a single ZIP containing all parts.

How to Use

Upload your large CSV file.
Option A (Rows): Enter how many rows you want per file (e.g., 5000).
Option B (Column): Select a category (like "Status") to create one file per category.
Click "Split & Download".
Wait for the ZIP file generation to complete.