Skip to main content

Organize · browser workspace

Split CSV by Exact Date Value

Group CSV rows into separate files using the exact values in a date column. Standardize dates first if equivalent dates use different text formats.

Quick start

Built for automatically split one file into many based on a specific column.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

  1. 1Choose a supported file or use sample data when available.
  2. 2Set the options shown for this workflow.
  3. 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…

How to Split by Column

  1. 1Upload your CSV file containing a date column
  2. 2Select the date column to split by
  3. 3Download a ZIP file with separate CSVs for each date

Why Use This Tool?

  • ✓Exact grouping - Each distinct date value becomes an output file
  • ✓Automatic Naming - Files named by date (e.g., 2023-01-01.csv)
  • ✓Batch Output - Get hundreds of files in one ZIP
  • ✓Preserves Data - Headers and row content kept intact
  • ✓Fast - Split browser-sized exports into practical chunks

Frequently Asked Questions

Can I split by Month instead of Day?

The tool splits by the exact value in the cell. To split by month, first use the "Standardize Dates" tool or edit your date column to be YYYY-MM format.

What date formats are supported?

Any text format works! The tool groups rows that have the exact same text in the selected column.

Is there a limit on the number of dates?

The number of output files depends on the unique dates in your data.