Hi everyone,
I’ve released ControllerTest, a free browser-based gamepad diagnostic tool for game developers, repair technicians, and players.
Project page:
https://jackking2060.itch.io/controller-test-online
[INSERT THE DIAGNOSTICS SCREENSHOT HERE]
ControllerTest can be used to check:
• Gamepad buttons, axes, and analog triggers
• Analog stick drift and center offset
• Practical deadzone suggestions
• Stick circularity and outer travel
• Browser-visible polling-rate estimates
• Vibration capability
• Xbox, PlayStation, Switch, and generic controllers
• JSON and CSV diagnostic report export
Controller readings are processed locally in the browser. No registration or installation is required.
I also published a technical tutorial explaining how to separate hardware input problems from runtime, mapping, deadzone, and plugin issues:
https://jackking2060.itch.io/controller-test-online/devlog/1562711/how-to-diagno...
The tool reports data exposed by the browser Gamepad API, so it is intended for troubleshooting and repeatable comparisons rather than hardware-lab certification.
Feedback from developers testing different controllers, browsers, and game runtimes is welcome.