How to Random Sample
- 1Upload your CSV file
- 2Set sample size
- 3Download random sample
Edit & Clean · browser workspace
Random Sample CSV Rows - Extract Subset
Extract a random subset of rows from your CSV. Test data generation.
Quick start
Built for extract a random subset of rows from your data.
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.
- 1Choose a supported file or use sample data when available.
- 2Set the options shown for this workflow.
- 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…
Why Use This Tool?
- ✓Random Selection - Browser pseudo-random sample
- ✓Custom Size - Choose how many
- ✓Testing - Create test datasets
Frequently Asked Questions
Is it cryptographically random?
No. It uses a browser pseudo-random Fisher-Yates sample intended for ordinary analysis and test subsets.