Clean a list of repeated lines, then sort it deliberately

A copied list often contains repeated names, blank lines, or inconsistent capitalization. Decide whether the original order matters before cleaning it: removing duplicates and sorting are different operations.

Keep the first occurrence

Paste one entry per line into Remove Duplicate Lines. With case and surrounding spaces ignored, “Paris”, “paris”, and “ Paris ” count as the same entry, and the first original spelling is retained. Turn off that option if case or spaces are meaningful in your data. Blank lines are removed from the result.

Deduplication cannot know that a typo or abbreviation refers to the same person or place. “New York” and “NYC” are different strings. Review a contact list before importing it into another service; deleting a similar-looking record automatically can remove real information.

Sort only when it helps

Use the Text Sorter when you want alphabetic A-to-Z, Z-to-A, or numeric order. Numeric order matters for 3, 12, and 25: a plain character-by-character sort can place 12 before 3. The tool sorts lines, not words within each line, and it does not remove duplicates for you.

Check the final list

Compare the number of entries and inspect a few examples at the top and bottom. The tools run in the browser and do not upload the list, but a copy you paste elsewhere is subject to that destination’s privacy rules. Keep an original copy before changing a list that is difficult to reconstruct.