List cleanup

Duplicate Finder

Paste a line-by-line list, choose what to keep, then copy a clean result without spreadsheet gymnastics.

Input

One item per line. We trim whitespace, collapse extra spaces, and remove hidden zero-width characters before matching.

Find duplicates, exclude the first instances

0 lines

Results

Process a list to see the cleaned output here.

Ready for a messy list

Paste URLs, emails, keywords, IDs, or any line-based list. Your results stay in the browser.