RomitCSV
Free CSV validation tool

CSV Data Profiler

Profile CSV columns with inferred data types, missing values, unique counts, and sample values.

What this tool checks

The profiler inspects each column and reports an inferred type, number of non-empty and missing values, distinct value count, and up to three sample values. Type inference is based on the cell contents.

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.