What it's for
Useful for organizing lists of emails, URLs, filenames, tags, or any line-by-line list — sorting alphabetically, removing repeated entries (keeping the first occurrence of each), or cleaning up blank lines.
How it works
Sorting compares each line's text; deduplication preserves the original order of the remaining lines (always keeping the first occurrence of each repeated value).
Frequently asked questions
Is sorting case-sensitive?
Comparison uses the browser's standard string ordering, which usually treats uppercase and lowercase slightly differently — for most everyday lists, the result is as expected.
Are two lines with trailing extra spaces considered duplicates?
No — deduplication compares the exact line text, including spaces. Use "Remove blank lines" separately to clean up blank ones.