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Data Analysis · browser workspace

CSV Completeness Score

Measure the share of populated CSV cells. Process locally in your browser with HappyCSV.

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How to use this tool

Quick start

Built for measure the share of populated csv cells.

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

Output: This score measures missing values only. It does not establish correctness, consistency, or fitness for a particular use.

  1. 1Choose a supported file within the displayed limits.
  2. 2Review the supported format and configure the available options.
  3. 3Process locally, review the result, and download it.

How to CSV Completeness Score

  1. 1Choose a supported file within the displayed limits.
  2. 2Review the supported format and configure the available options.
  3. 3Process locally, review the result, and download it.

Why Use This Tool?

  • ✓Measure the share of populated CSV cells.
  • ✓This score measures missing values only. It does not establish correctness, consistency, or fitness for a particular use.
  • ✓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?

This score measures missing values only. It does not establish correctness, consistency, or fitness for a particular use.

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.