Remove Duplicate Lines

It cleans a messy list by stripping any line that already appeared earlier in the list. You can also clear blank lines, trim trailing spaces, and sort the result alphabetically. Useful for keyword lists, URL lists, email lists, and any kind of one item per line data.

Spreadsheet exports, copy paste from multiple sources, scraped data, and merged team files almost always contain repeats. Cleaning them by hand on a long list is a slow and error prone job. This tool finishes it in one click.

1. Paste your list, one item per line, into the input box.
2. Choose options like case sensitive matching or alphabetical sorting.
3. Click Clean my list.
4. Copy the deduplicated result.

Sorting helps when you plan to compare the list with another, audit it visually, or import it into a system that benefits from alphabetical order. Skip sorting if the original order has meaning, like a priority list.