# Hardware & Peripheral Testing

> Verify your mouse, keyboard, gamepad, and monitor are performing as expected with free browser tools that test hardware locally without any drivers.

## Tools in this collection

- [鼠标加速检测器](https://www.teafun.cyou/tools/mouseaccel/) — 检测您的操作系统是否启用了鼠标加速。先慢后快地移动鼠标，我们将分析光标的非线性程度。
- [鼠标灵敏度转换器](https://www.teafun.cyou/tools/sensitivity/) — 即时转换 50+ 款游戏的鼠标灵敏度。输入您的 DPI 和灵敏度，查看 cm/360° 及各游戏对应设置。
- [手柄测试器](https://www.teafun.cyou/tools/gamepad/) — 测试手柄输入、检查摇杆漂移，并自定义死区范围。完全在浏览器中运行。
- [鍵盤熱力圖](https://www.teafun.cyou/tools/keyboard-heatmap/) — 即時追蹤最常用按鍵，用真實打字頻率生成 heatmap，仲可以匯出 PNG。
- [显示器刷新率](https://www.teafun.cyou/tools/monitor/) — 在浏览器中检测你的显示器刷新率。

## FAQ

### Do I need to install drivers or software?

No. All tools run directly in your browser using standard web APIs. No downloads, extensions, or admin rights are required.

### Can these tools replace manufacturer software?

For quick diagnostics and verification they work well. For advanced configuration like custom DPI curves or RGB lighting you still need the manufacturer app.