Dedupe TXT | 72Tool Free Online Text Tool

Dedupe TXT — a free online Text Tools tool. Runs entirely in your browser, no upload, no registration, works on phone and desktop.

Dedupe TXT is a free online tool in the 72Tool toolbox for Text tasks. Enter your input to get instant, accurate results — handy for work, development and daily use.

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Dedupe TXT

TXT文本去重是一款免费的在线文本处理工具，无需下载安装、无需注册登录，打开网页即可使用。它把粘贴的文本或上传的 txt 文件按行比对，删除重复出现的行、只保留每行的首次出现并维持原有顺序，同时支持「忽略大小写」「忽略首尾空格」「删除空行」等选项，并统计去重前后的行数。所有处理均在浏览器本地完成，数据不上传服务器。

TXT文本去重适用于名单/手机号/邮箱去重、关键词与词库整理、日志与导出记录清洗、SEO 长尾词表去重等场景。相比在表格里逐条排查，按行一键去重又快又准。作为一款轻量在线工具，它随开随用，是数据清洗与日常办公中的实用小工具。

使用教程
  1. 粘贴文本到输入框，或选择一个 .txt 文件自动载入。
  2. 按需勾选忽略大小写、忽略首尾空格、删除空行。
  3. 点击「按行去重」，浏览器本地完成处理。
  4. 查看删除统计，复制结果或下载为 txt。
常见问题
Q1：去重会打乱顺序吗？
A：不会，保留每行首次出现的位置，顺序与原文一致。
Q2：忽略大小写是什么意思？
A：勾选后 Apple 与 apple 视为相同行，仅保留先出现的一条。
Q3：数据会上传吗？
A：不会，全部在浏览器本地处理。
Q4：能对整段（非按行）去重吗？
A：本工具按行去重，如需段落级去重可先整理为一行一条再处理。
Q5：去重和查重有什么区别？
A：去重是删除完全重复的行并输出结果，查重是标记相似内容；如需相似度检测可用「文案查重简易」。
TXT文本去重可以在手机上使用吗？
A：可以，本工具基于网页运行，手机、平板、电脑均可直接打开网页使用，无需安装 App。
相关工具
Merge TXT Files Split TXT Files Text Duplicate Check Multi-line Text Tool Shuffle Lines
Features & Use Cases

Dedupe TXT is a free online Text Tools tool. No download or registration is required — just open the page and use it instantly. All processing runs locally in your browser, so your files and data never leave your device, keeping everything private.

How to Use
  1. Enter or paste the content you want to process into the input area.
  2. Set any options you need (such as units or modes) from the controls on the page.
  3. Click the action button and let the tool process everything locally in your browser.
  4. View the result, then copy or download it as needed.
FAQ
Q：Is the result accurate?
A：It uses standard algorithms and conversion factors, accurate enough for everyday and work use.
Q：Will my data be uploaded?
A：No. All processing happens locally in your browser; nothing is sent to any server.
Q：Can I use it on my phone?
A：Yes. It runs in any modern browser on phone, tablet, or desktop — no app install needed.
Q：Is it really free?
A：Yes, this tool is completely free to use, with no login required.
Related Tools
Merge TXT Files Split TXT Files Text Duplicate Check Multi-line Text Tool Shuffle Lines

Note: Dedupe TXT runs entirely in your browser; your data is not uploaded to any server. Explore more free online tools on the 72Tool homepage.