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Data Analysis · browser workspace

CSV Row and Column Count

Get an instant row count, column count, file size, and header summary without uploading your CSV. Process locally in your browser with HappyCSV.

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How to use this tool

Quick start

Built for checking row count, column count, headers, and file size before an import or handoff.

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

Output: A JSON report with basic CSV dimensions and headers.

  1. 1Upload the CSV.
  2. 2Review the compact file report.
  3. 3Download the JSON summary if you need to share it.

How to CSV Row and Column Count

  1. 1Upload the CSV.
  2. 2Review the compact file report.
  3. 3Download the JSON summary if you need to share it.

Why Use This Tool?

  • ✓Get an instant row count, column count, file size, and header summary without uploading your CSV.
  • ✓A JSON report with basic CSV dimensions and headers.
  • ✓Files are processed locally in this browser.
  • ✓Keep the source file and review the result before importing it elsewhere.

Frequently Asked Questions

What does this tool support?

A JSON report with basic CSV dimensions and headers.

What are the processing limits?

Up to 100 MB per CSV, 20 MB per complex document; 250,000 rows, 1,000 columns, 2 million cells, and 128 MB output. Jobs stop after two minutes. Large files may need splitting.

Are my files uploaded?

No. File processing stays in your browser. Files are not automatically saved for the next visit.

Can I process multiple files?

This tool processes one file at a time.