CSV Tools

Column Stats

Get data type, null count, unique count, and common values per column

CSV Input

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Column Stats

Paste or upload a CSV for column stats...

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CSV Format

Input

How to Use This Tool

This tool shows metadata for every column in your CSV: detected data type, empty/non-empty counts, unique values, most and least common values, and string length ranges.

  1. Provide your CSV — Paste CSV text into the input area, drop a CSV file onto the File tab, or enter a URL on the URL tab.
  2. View your results — Column metadata appears instantly in a table.
  3. Copy or save — Copy the results to your clipboard (tab-separated for Excel) or save as a CSV file.

FAQ

3 questions
Does this tool upload my data?
No. It runs entirely in your browser using JavaScript. Your CSV data is never sent to a server.
What data types are detected?
String, number, boolean, and date. A column's type is determined by checking all non-empty values.
What does Most Common show for all-unique columns?
If every value in a column is unique, Most Common and Least Common show a dash (—).

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