代码差异对比
并排展示两段代码的行级差异。
关于「代码差异对比」
它属于「开发辅助」分类：前端与后端开发中经常用到的小工具。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：代码差异对比、开发辅助、diff、代码、对比、在线工具、免费
如何使用「代码差异对比」
- 打开工具：打开「代码差异对比」页面，无需注册、无需安装任何软件。
- 准备输入：准备好要处理的内容或文件：文本可直接粘贴，文件可拖入页面（本工具属于「开发辅助」）。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- 为什么是逐行而非逐字？
- 逐行对比更直观、性能更好；词级/字符级差异可用专门的代码比对工具。
- 空行也算差异吗？
- 算。空行与有内容的行不同，会被标记为增删。
Code Diff (English)
Show line-level diff of two code snippets side by side.
Belongs to “Dev Tools”: Small utilities frequently used in front-end and back-end development.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: Code Diff, Dev Tools, diff, code, compare, online tool, free
How to use it
- Open the tool：Open the “Code Diff” page — no sign-up and nothing to install.
- Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “Dev Tools”).
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- Why line-by-line, not character-by-character?
- Line-by-line is more intuitive and faster; for word/character-level diffs use a dedicated code comparison tool.
- Do blank lines count as differences?
- Yes. A blank line differs from a non-empty line and is marked as added/removed.
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