Text Tools
Remove Duplicate Lines
Strip duplicate lines from a list. Case-sensitive option, optional whitespace trim.
1 → 1 lines · removed 0
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About Remove Duplicate Lines
Remove Duplicate Lines deduplicates a list of lines while preserving the original order. Toggle case sensitivity, trim whitespace per line, and choose whether blank lines count as duplicates.
Useful for cleaning up email lists, CSV columns, log files, and any pasted list where duplicates accumulated. Runs entirely in your browser — no upload, safe for confidential data.