TEXT NO.018
Text Diff Checker
Compare two texts line by line — additions and deletions at a glance.
This tool runs entirely in your browser. Nothing is uploaded to any server.
Original
Modified
What is this
什么是文本对比
Diff 工具逐行对齐两段文本，用颜色标出删除与新增，是代码 review、合同修订、配置审计的效率工具。本工具即贴即比，无需安装 git。
What is a text diff
A diff aligns two texts line by line and colors the deletions and additions — the workhorse of code review, contract revisions and config audits. Paste both sides here, no git required.
如何使用
- 左右分别粘贴原文与修改后文本。
- 差异行红绿高亮展示。
- 可选忽略空白大小写。
FAQ
Line-level or character-level?
Alignment is line-based (like git diff); changed lines appear as a deletion/addition pair.
Does it ignore whitespace?
Comparison is exact by default. Toggle "ignore whitespace" to filter out indentation and trailing-space noise.
Is it safe to paste sensitive config?
Yes. Diffing happens in browser memory with zero network requests.