Free tools
English
Duplicate line remover
Compare case, spaces and Unicode; keep the first, last or only non-repeated lines and review duplicate counts. Inputs stay in this browser; no URL fetching or automatic saving. Files must be UTF-8.
No account needed
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How to use
- 1Paste lines or import a file.
- 2Choose comparison options and whether to keep first, last or unique lines.
- 3Review removed lines and duplicate groups, then apply or download.
Good to know
Limit: 200,000 UTF-16 units and 1 MB UTF-8. Comparison options do not rewrite retained lines. Title small-word rules apply only to English; proper names are not inferred. Inputs are not autosaved.
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