🔡 UTF-8 文本转小写Convert UTF-8 to Lowercase

使用说明与常见问题How-to & FAQ

「UTF-8 文本转小写」是什么？What is the Convert UTF-8 to Lowercase tool?

用 JavaScript 的 toLowerCase() 把文本转为小写：完整的 Unicode 大小写映射，与语言区域无关。本地处理。Lowercase the text with JavaScript toLowerCase(): full Unicode case mapping, the same in every locale. Processed locally.

如何使用「UTF-8 文本转小写」？How do I use the Convert UTF-8 to Lowercase tool?

在「UTF-8 文本转小写」中，把内容粘贴或输入到上方输入框，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「Hi」，得到「hi」。In the Convert UTF-8 to Lowercase: Paste or type into the input box; the result appears below instantly — click "Copy result" to copy it. Example: "Hi" → "hi".

土耳其语的 İ 和 I 会特殊处理吗？Are the Turkish İ and I handled specially?

不会。这里用的是与语言区域无关的 Unicode 映射：İ 变成 i̇（i 加上点），I 变成 i（不是 ı）。需要土耳其语规则时请用支持语言区域的工具。No. The mapping does not depend on locale: İ becomes i̇ (i with a combining dot) and I becomes i (not ı). Use a locale-aware tool if you need Turkish rules.

输入和输出是什么样的？What does the input and output look like?

例如在「UTF-8 文本转小写」中输入 Hi，输出为：hi。For example, the Convert UTF-8 to Lowercase turns the input Hi into: hi.

处理大段文本会卡吗？Can it handle long text?

「UTF-8 文本转小写」在浏览器中直接处理，几 MB 以内的文本通常瞬间完成；文本不会离开你的设备。The Convert UTF-8 to Lowercase runs in your browser; text up to a few MB is usually processed instantly and never leaves your device.

「UTF-8 文本转小写」免费吗？需要注册吗？Is the Convert UTF-8 to Lowercase free? Do I need an account?

「UTF-8 文本转小写」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Convert UTF-8 to Lowercase is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.