# 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

- [Detector de Aceleração do Mouse](https://www.teafun.cyou/tools/mouseaccel/) — Descubra se a aceleração do mouse do seu SO está ativa. Mova devagar e depois rápido — analisamos a não linearidade do cursor.
- [Conversor de sensibilidade do mouse](https://www.teafun.cyou/tools/sensitivity/) — Converta sua sensibilidade de mouse para 50+ jogos instantaneamente. Insira seu DPI e sensibilidade para ver seu cm/360° e as configurações equivalentes em cada jogo.
- [Testador de Gamepad](https://www.teafun.cyou/tools/gamepad/) — Teste as entradas do controle, verifique drift nos analógicos e configure zonas mortas personalizadas.
- [Mapa de Calor de Teclado](https://www.teafun.cyou/tools/keyboard-heatmap/) — Acompanhe suas teclas mais usadas em tempo real, construa um mapa de calor a partir da digitação real e exporte o resultado como PNG.
- [Taxa de atualização da tela](https://www.teafun.cyou/tools/monitor/) — Detecte a taxa de atualização do seu monitor no navegador.

## 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.