Minimalist Design
Built for Gamers
We believe a great testing tool should be like a perfect hall effect stick: precise, smooth, and drift-free.
Forever Free
No paywalls, no premium tiers. All features are open to all players, delivering the purest testing experience.
Native Technology
Built on HTML5 Gamepad API and WebHID standards. No drivers needed — just open your browser to detect Xbox, PS5, and Switch controllers.
Zero Bloat
Fast loading, no intrusive ads. We focus on the data itself, showing you the most accurate deadzone and centering performance.
Born from Frustration, Built with Passion
ControllerTest.io was inspired by a frustrating gaming experience. While playing Elden Ring, my character kept drifting left on its own — the infamous "stick drift" problem.
I tried to find an online tool to diagnose my controller, but most websites had outdated interfaces, intrusive download ads, or couldn't properly detect my DualSense.
So I decided to rebuild the controller testing experience with modern web technology. This is the backyard for all console and PC gamers — the best place to verify your gear and fine-tune your deadzone settings.