Free online remove duplicates tool. Deduplicate by line, keep first/last, ignore blanks, case-sensitive. Clean duplicate text lines fast. | No registration · Pure frontend
Zero dependencies · Works offlinePaste text into the input box, select dedup options (keep first/last, ignore blanks, case-sensitive), click dedup to get cleaned text
Splits text by newlines into lines, then removes duplicate lines. For example, if there are 3 identical 'hello' lines, only 1 remains after deduplication.
Keep first: when duplicates appear, keep the first occurrence. Keep last: keep the last occurrence, i.e., later lines override earlier ones.
Absolutely. All text processing is done locally in your browser and never uploaded to any server.