Remove Duplicate Lines|文本去重行工具

文本去重行工具 | Remove Duplicate Lines

文本去重行工具 Remove Duplicate Lines

粘贴或输入文本,一行代表一个项目,一键去除重复行,适合整理关键词、姓名名单、备注列表等。
Paste or type your text (one item per line) and remove duplicate lines with one click. Ideal for cleaning keyword lists, name lists and note collections.

1. 输入文本与设置 · Input Text & Options
常见用法示例:
· 批量整理 SEO 关键词,删除重复词组。
· 清洗客户、学生或员工姓名名单。
· 合并多个备注、日志,去除重复记录行。

Typical use cases:
· Clean SEO keyword lists by removing duplicates.
· Deduplicate client, student or staff name lists.
· Merge multiple notes or logs and remove duplicate entries.
保留规则 · Keep Rule
· 勾选“忽略首尾空格”有助于统一格式,例如 “Tom ” 与 “Tom” 将视为同一行。
· “忽略大小写”适合英文关键词或邮箱列表的去重。
· “保留首次出现”更利于保持原始顺序;“保留最后出现”适合希望使用最新版本记录的场景。

· Trimming spaces helps unify format, e.g., “Tom ” and “Tom” become the same line.
· Case-insensitive mode is helpful for English keywords or email lists.
· Keeping the first occurrence preserves the original order; keeping the last is useful when the latest entry matters.
3. 使用小贴士 · Usage Tips
  • 整理关键词列表 · Clean keyword lists:
    从多个广告平台、Excel 表或文档中复制关键词,粘贴到本工具,一键去重,再导回 Excel 或投放系统。
    Copy keywords from multiple ad platforms, spreadsheets or documents, deduplicate them here, then copy the clean list back to Excel or your ad system.
  • 去重姓名或邮箱名单 · Deduplicate name or email lists:
    批量导出不同来源的客户名单时,常会出现重复条目。通过“忽略大小写+去重”,可以快速获得唯一名单,避免重复联系。
    When merging client or email lists from different sources, duplicates are common. Use this tool to get a unique list and avoid contacting the same person twice.
  • 合并备注和日志 · Merge notes and logs:
    将多个系统或文件中的备注、日志复制到一处,通过保留最后出现的行,可保留“最新版本”的记录。
    When combining notes or logs from multiple systems, keeping the last occurrence can help you preserve the most recent version of each record.
  • 顺序与可追溯性 · Order & traceability:
    若你更在意原始顺序和录入时间,建议选择“保留首次出现的行”;若你更看重最新更新,则选择“保留最后出现的行”。
    If you care more about original order and time of entry, “Keep first occurrence” is recommended. If the latest update matters more, choose “Keep last occurrence” instead.

说明:本工具仅对“整行文本”进行去重判断,不做内容分词或模糊合并,也不会自动修改行内内容。 在导入系统前,请根据业务需要再次检查结果。
Note: This tool deduplicates entire lines only and does not perform tokenization, fuzzy matching or in-line editing. Please review the cleaned list before importing it into any production system.