# 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

- [マウス加速検出ツール](https://www.teafun.cyou/tools/mouseaccel/) — OSのマウス加速が有効かどうかを確認します。ゆっくり、次に素早くマウスを動かしてください。
- [マウス感度コンバーター](https://www.teafun.cyou/tools/sensitivity/) — 50以上のゲームのマウス感度を瞬時に変換。DPIと感度を入力して、cm/360°と各ゲームの対応設定を確認できます。
- [ゲームパッドテスター](https://www.teafun.cyou/tools/gamepad/) — コントローラーの入力確認、スティックドリフトの検出、デッドゾーン調整をブラウザだけで行えます。
- [キーボードヒートマップ](https://www.teafun.cyou/tools/keyboard-heatmap/) — 最もよく使うキーをリアルタイムで追跡し、実際のタイピングからヒートマップを作成して、結果をPNGとしてエクスポートします。
- [モニターのリフレッシュレート](https://www.teafun.cyou/tools/monitor/) — ブラウザでモニターのリフレッシュレートを検出します。

## 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.

### My controller shows movement when I am not touching it — what does that mean?

That is stick drift: the analog stick reports input at rest, usually from wear or dust. The gamepad tester confirms it and shows how severe it is, which helps you decide between cleaning, recalibrating, or replacing the controller.

### The monitor test shows a lower rate than my display is rated for — why?

A capped refresh rate usually comes from the cable, the OS display settings, or a graphics-driver default rather than the panel itself. Check that you are using a cable rated for the refresh rate and that the rate is selected in your system display settings.