Is Text Diff free to use?

Yes, Text Diff is completely free. No registration, no account, and no hidden costs — ever.

Is my data safe when using Text Diff?

All processing happens directly in your browser. Your data never leaves your device — nothing is uploaded or stored on our servers.

No. All CheckTown tools work instantly without registration or sign-up.

Text Diff works on any device — desktop, tablet, or phone. The interface adapts to your screen size.

对比两段文本并高亮显示差异。支持逐行和逐词对比。

原始

修改后

在上方输入两段文本进行对比

我们会高亮显示新增、删除和修改的内容

Ctrl+Enter 运行Ctrl+Shift+C 复制

手动查找文本各版本之间的差异既繁琐又费时。了解对比工具的原理，加快审阅速度。

什么是文本差异比对？

文本差异比对是对两个版本文本的比较，能够精确标示出发生了哪些变化。它会显示新增内容（新增的行或字符）、删除内容（被移除的内容）以及未改动的上下文。差异工具是版本控制、代码审查和文档比对工作流的基础。