CSV Janitor
Case-Insensitive Deduplicator
Remove duplicates regardless of capitalization (e.g., treats "Dave" and "dave" as the same).
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About This Tool

Data entry often leads to inconsistent casing (e.g., 'John' vs 'john'). Standard deduplication tools miss this. This tool normalizes your list to check for duplicates regardless of capitalization.

How to Use

  1. Paste your mixed-case list.
  2. Run the tool.
  3. It detects that 'Dave', 'dave', and 'DAVE' are the same name.
  4. It keeps one version (usually the first one found) and removes the rest.

Frequently Asked Questions