About ControllerTesters.com
Engineering the world's most responsive, browser-native gamepad diagnostic suite and cognitive reflex benchmarking platform.
Our Mission
ControllerTesters.com was built to eliminate the need for shady third-party driver downloads and bloated software just to check if a game controller is working properly. Leveraging modern W3C HTML5 Gamepad APIs and high-precision performance timers, we provide instant, zero-latency hardware diagnostics directly in your web browser across Windows, macOS, Linux, Android, iOS, and ChromeOS.
Engineering Philosophy
Sub-Millisecond Polling Telemetry
We measure exact hardware polling rate up to 1000Hz with sub-millisecond precision timing so you can test USB overclocking and wireless jitter.
Polar Stick Drift & Deadzone Radar
Our 64-sector circular boundary mapping calculates real-time average circularity error, centering deviation, and potentiometer degradation.
100% Client-Side & Zero Installation
All gamepad signals are processed locally on your machine in real-time. No background telemetry is collected, no drivers required, and zero account sign-ups.