Default keeps first occurrence order. Sorting only happens with sort=true.

Text Cleaner

Clean duplicate lines, blank lines, trailing spaces and optionally sort

Runs locally in your browser; input is never uploaded

Text & Writing

Deduplicate linesWhen enabled, keeps the first occurrence of each line and removes subsequent duplicates.Remove blank linesWhen enabled, removes lines that contain only whitespace.Sort linesWhen enabled, sorts lines by content; when disabled, preserves original order.