HTMLDuplicate Line Remover
Paste any block of text and instantly remove duplicate lines. Options: case-insensitive matching, trim whitespace before comparing, sort the result alphabetically, and show a count of removed lines. Useful for cleaning email lists, keyword lists, and log files.
Ctrl+Enter to run | Ctrl+K to switch tools | Recent button shows input history
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Does order matter?
By default, the first occurrence of each line is kept and subsequent duplicates are removed, preserving original order. Enable "sort" to alphabetize the output instead.
What counts as a duplicate?
By default, lines must match exactly (case-sensitive). Enable "ignore case" to treat "Apple" and "apple" as duplicates.