RomitCSV
Free CSV validation tool

CSV Delimiter Detector

Detect whether a delimited text file uses commas, tabs, semicolons, or pipes between fields.

What this tool checks

The detector counts common delimiters outside quoted text on the first non-empty line. It reports the counts and the most likely delimiter. Single-column files may have no detectable delimiter.

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.