Text Diff
Compare two texts and highlight differences.
How to use
- 在左右两个输入框粘贴文本，差异结果实时逐行标记。
- 绿色为右侧新增行，红色为左侧独有（被删除）行；修改行会高亮具体差异片段。
- 可开启「忽略空格」「忽略空行」「忽略大小写」聚焦真正的内容变化。
- 支持交换两侧文本；大文本对比采用行级 Myers 算法并限制规模，超长文本会提示。
SSS
Does Text Diff upload my data?
No. Processing stays in your browser and is not uploaded.
Do I need an account?
No. Open and use — no signup.
How is this different from upload-based tools?
Tools run locally in your browser; content is not sent to our servers for processing.
Are there limits?
Limited by device memory and the browser; very large inputs may slow the page.