CleanMyCSV

The tool processes CSV files to resolve common formatting problems without requiring user registration. It automatically detects and normalises delimiters and character encoding, converting data to clean UTF‑8 and aligning columns that may have been merged or shifted. Duplicate rows are identified and removed, and invisible whitespace, case inconsistencies, and structural elements such as email addresses or phone numbers are cleaned and validated.

Typical users are analysts, developers, or anyone who imports CSV data into software that expects consistent formatting. By handling US and EU conventions for dates, numbers, and currencies, the service prepares files for downstream processing, reducing manual editing and error‑prone scripts.

What distinguishes the service is its background algorithm that performs all three steps—delimiter/encoding correction, duplicate elimination, and data formatting—in a single drag‑and‑drop operation, delivering an instant, ready‑to‑use CSV output. The process is instantaneous, files are deleted after cleaning, and no authentication or subscription is required for the free tier.