Text Diff Checker
Compare two texts line by line and see exactly what changed.
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Lines added
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Lines removed
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Lines changed
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Identical lines
Line-by-line comparison, the way diff and git diff do it. Nothing is uploaded — the comparison happens in your browser.
使用方法
- 一切都在您的浏览器本地运行：不会上传任何数据，无需账户。
关于
Paste the original and the changed version and the tool shows a line-by-line difference in the same style as git diff — added lines prefixed with a plus, removed lines with a minus, and changed lines shown as both.
The comparison uses a longest common subsequence, so a moved or reworded block is reported as a real change rather than a cascade of false edits. Toggles let you ignore whitespace or letter case when that is all that changed.
一切都在您的浏览器本地运行：不会上传任何数据，无需账户。
Embed this tool
Customize and copy an iframe. Linking back helps both sites.