Remove Duplicate Lines
Remove duplicate lines from a list, leaving one of each.
One of each, no repeats
Lists gather duplicates: an email export with the same address twice, a merged file with repeated rows, a copy-paste that doubled up. This strips the repeats out, keeping a single copy of each line, so a messy list becomes a clean set of unique entries.
Paste the lines in and the duplicates are removed.
Remove, sort, or find?
If you also want the result alphabetised, sorting and deduping in one step does both. If you would rather see which lines were duplicated and how often before deciding, the duplicate finder identifies them instead of silently deleting. This tool is the direct route for when you simply want a clean list with every repeat gone.
Questions & answers
Does it keep one copy of each line?
Yes. Every duplicate is removed, leaving a single instance of each unique line.
Can it sort the list too?
Use the sort-and-dedupe tool if you want the unique lines alphabetised as well.
Is my text uploaded?
No. The deduplication happens in your browser.