Sample Rows

About This Spell

With a wizard's whisper, Extract a random sample of rows by count or fraction. Optionally stratify by a column to keep balanced representation across categories.

How to Cast the Spell:

Use your magic to Paste CSV data.
Use your magic to Choose sample size (n) or fraction.
Use your magic to Optionally set a stratify column.
Use your magic to Click Sample.

What is CSV Sampler?

CSV Sampler is a free data wrangler from WizardOfAZ. Use it to work with CSV files using flexible options as part of your analytics and reporting, without installing extra software.

Because everything happens locally in your browser, your spreadsheets stay under your control while you work with CSV files using flexible options.

Popular ways to use CSV Sampler

Streamline analytics and reporting by using CSV Sampler to work with CSV files using flexible options.
Share deliverables faster—processed tabular datasets are ready for download in seconds.
Combine CSV Sampler with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

Upload a sample file, cast the spell to work with CSV files using flexible options, and download the processed result instantly.
Bookmark the CSV Sampler in your browser so recurring tasks stay only one click away.
Share the spell with teammates who need a quick, no-install way to work with CSV files using flexible options.

Frequently asked questions

Is the CSV Sampler secure?

Yes. The CSV Sampler runs entirely in your browser, which means your spreadsheets never leave your device.

What can I do with the CSV Sampler?

You can analytics and reporting by processing tabular datasets without uploading them to an external service.

Can I use CSV Sampler on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement CSV Sampler:

CSV Deduplicator — Use it to work with CSV files using flexible options.
CSV Filter — Use it to work with CSV files using flexible options.
CSV Merge Join — Use it to merge tabular datasets into a single download.