⌨️ 键盘测试工具Keyboard Tester
按下按键，屏幕上的可视化键盘会实时高亮，并把测过的键标绿，帮助检测键盘坏键，全部本地运行。Press keys and the on-screen keyboard highlights them live, marking tested keys green — great for spotting dead keys, all local.
点击本页面后按下键盘上的任意键进行测试。Click this page, then press any key to test it.
使用说明与常见问题How-to & FAQ
「键盘测试工具」是什么？What is the Keyboard Tester tool?
按下按键，屏幕上的可视化键盘会实时高亮，并把测过的键标绿，帮助检测键盘坏键，全部本地运行。Press keys and the on-screen keyboard highlights them live, marking tested keys green — great for spotting dead keys, all local.
如何使用「键盘测试工具」？How do I use the Keyboard Tester tool?
在「键盘测试工具」中，按需设置点击「重置」按钮即可。In the Keyboard Tester: Click "Reset".
能检测笔记本的多媒体键吗？Does it detect laptop media keys?
能检测浏览器可以接收到的按键；部分多媒体键、Fn 组合键或被系统拦截的快捷键浏览器收不到，因而不会高亮。It detects any key the browser receives; some media keys, Fn combos or system-captured shortcuts never reach the browser and will not light up.
代码或数据会被上传吗？Is my code or data uploaded?
不会。「键盘测试工具」完全用 JavaScript 在本地运行，适合处理含有密钥、内部接口等敏感内容的数据。No. The Keyboard Tester runs entirely in local JavaScript, so it is safe for data containing keys or internal endpoints.
「键盘测试工具」免费吗？需要注册吗？Is the Keyboard Tester free? Do I need an account?
「键盘测试工具」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 Keyboard Tester is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.