# 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

- [滑鼠加速偵測器](https://www.teafun.cyou/tools/mouseaccel/) — 檢測您的作業系統是否啟用了滑鼠加速。先慢後快地移動滑鼠，我們將分析游標的非線性程度。
- [滑鼠靈敏度轉換器](https://www.teafun.cyou/tools/sensitivity/) — 即時轉換 50+ 款遊戲的滑鼠靈敏度。輸入您的 DPI 和靈敏度，查看 cm/360° 及各遊戲對應設定。
- [控制器測試器](https://www.teafun.cyou/tools/gamepad/) — 測試控制器輸入、檢查搖桿飄移，並自訂死區範圍。完全在瀏覽器中執行。
- [鍵盤熱力圖](https://www.teafun.cyou/tools/keyboard-heatmap/) — 即時追蹤最常用的按鍵，以真實打字頻率生成熱力圖，也可以匯出 PNG。
- [螢幕刷新率](https://www.teafun.cyou/tools/monitor/) — 在瀏覽器中偵測你的螢幕刷新率。

## 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.