RomitCSV
Free CSV validation tool

CSV Column Data Type Detector

Detect whether CSV columns contain integers, numbers, dates, booleans, text, mixed values, or blanks.

What this tool checks

The detector infers a type from non-empty data cells in each column. Numeric integer and decimal values are grouped under Number when mixed; columns with several unrelated types are labeled Mixed.

How to use it

  1. Choose a CSV or TSV file up to 50 MB.
  2. Set any requested options and run the check.
  3. Review the report or download it as a CSV file.

The file is read and analyzed in your browser. It is not sent to the RomitCSV server. Use the CSV Validator for a general structure check or browse all CSV tools.