ControllerTest
在线检测手柄按键、摇杆漂移、死区与回报率
一款免费的在线游戏手柄检测工具，无需安装软件，连接手柄即可在浏览器中测试按键、摇杆、扳机等输入状态。支持摇杆漂移、死区、Circularity、Polling Rate、Jitter、震动等检测，可用于新手柄验机、二手手柄检测和故障排查，支持 Xbox、PlayStation、Switch 等多种控制器。
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语言
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I opened the live browser tester and checked the workflow. The controller connection prompt, button grid, axis values, drift sampling, polling-rate panel, and export options are organized clearly. It also explains that a USB, Bluetooth, or dongle-connected controller is needed before hardware results can appear.