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Edit & Clean · browser workspace

CSV Head and Tail - Preview First or Last Rows

Show the first or last N rows of a CSV in your browser. Sample big files instantly and download exactly the rows you inspected.

Quick start

Built for extract the first or last n rows from your csv.

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 Head / Tail

  1. 1Upload a CSV of any size up to 100MB.
  2. 2Pick head (first rows) or tail (last rows) and set the row count.
  3. 3Review the sampled output in the result preview.
  4. 4Download the sample as a new CSV file.

Why Use This Tool?

  • ✓Instant Sampling - Check structure before committing to a full import
  • ✓Exact Counts - You choose precisely how many rows to keep
  • ✓Header Safe - The header row is always preserved
  • ✓No Uploads - Parsing happens locally on your device

Frequently Asked Questions

Does the header row count toward N?

No. N counts data rows only; the header is always included in the output so samples stay usable.

Can I use this to split off test data?

Yes. Head is a common way to carve a small test file from a production export before running riskier transformations.

How is tail different from Excel?

Excel slows down dramatically past 100k rows, while this tool parses the file in the browser and slices the end directly.