Text line deduper
Remove duplicate lines from text (keep order or sort unique). Copy output or share a link.
Runs locally in your browser. Nothing is uploaded.

Tip: Great for cleaning email lists, exported CSV columns, or any line-based data.

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About / 關於

Text line deduper — Remove duplicate lines from text with options to ignore case, trim whitespace, and ignore empty lines. Choose to keep the original order or sort unique lines. Copy output or share a link. Browser-only MVP.

Example: Use this tool to sanity-check numbers quickly, then share the link if you need to discuss with others.

FAQ: (1) Does it upload my data? No—runs in your browser. (2) Can I share results? Yes—use the share link feature. (3) Is it authoritative? Treat it as a convenience, not professional advice.

文字行去重器 — 把文字逐行去重,可選忽略大小寫、去除前後空白、忽略空行;支援保留原順序或排序後去重。可複製輸出或分享連結。純前端 MVP。

範例:用這個工具快速試算與對照結果,需要討論時再把連結分享給對方。

FAQ: (1) 會上傳資料嗎?不會,計算在瀏覽器內完成。 (2) 能分享結果嗎?可以,用分享連結。 (3) 準確嗎?請把它當作便利工具,不是專業建議。