Merge TXT Files | 72Tool Free Online Text Tool

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

Merge TXT Files 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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Merge TXT Files

TXT文件合并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。一次选择多个 .txt 文件，工具会按文件名顺序把它们拼接成一个文本，并可选在每段前加上文件名标题、在文件之间插入空行或分隔线，方便区分来源。合并结果可实时预览并一键下载为新的 txt 文件。所有处理均在浏览器本地完成，文件不上传服务器，隐私安全。

TXT文件合并适用于把分章节的小说 txt 拼成整本、合并多天的日志文件、整理散落的文案素材、汇总多份导出记录等场景。相比手动复制粘贴，批量选择一步到位，还能保留清晰的文件边界。作为一款轻量在线工具，它随开随用，是写作、办公与数据整理中的实用小工具。

使用教程
  1. 点击选择框，一次选中多个需要合并的 .txt 文件。
  2. 按需勾选「加文件名标题」并选择分隔方式。
  3. 点击「合并 TXT 文件」，浏览器本地按文件名顺序拼接。
  4. 预览无误后点击「下载合并结果」保存为一个 txt。
常见问题
Q1：文件按什么顺序合并？
A：按文件名做本地化排序拼接，命名时加序号（如 01、02）可保证顺序。
Q2：文件会上传服务器吗？
A：不会，全部在浏览器本地读取与合并。
Q3：支持多少个文件？
A：本地处理无硬性限制，文件很多或很大时受浏览器内存影响。
Q4：会改变原文件吗？
A：不会，仅生成新的合并结果供下载，原文件保持不变。
Q5：合并的文件出现乱码怎么办？
A：本工具按 UTF-8 读取，若源文件是 GBK 编码可能乱码，可先用「TXT编码转换」统一转为 UTF-8 再合并。
TXT文件合并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
Split TXT Files Dedupe TXT TXT Encoding Converter Text Cleaner Delimited Text to CSV
Features & Use Cases

Merge TXT Files 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
Split TXT Files Dedupe TXT TXT Encoding Converter Text Cleaner Delimited Text to CSV

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