Browser-based diagnostics
Test your controller.
Diagnose common issues.
Browser-based controller and gamepad diagnostics for stick drift, buttons, triggers, input timing, connection stability, and more - no download and no account required.
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Diagnostic Tools
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Benchmark Stages
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Device Guides
The Arsenal
25 diagnostic tests
Focused browser tools for sticks, buttons, triggers, input timing, connectivity, haptics, and other supported controller signals.
Controller Health Score
Six checks, one GPADLAB score
A GPADLAB-defined 0-1000 composite across drift, button response, triggers, deadzone, browser-observed input timing, and connection stability. It is useful for repeat comparisons, not a manufacturer or tournament standard.
Run the benchmark847
out of 1000
GradeA
Universal Support
Built for every controller
Pre-configured layouts for 80+ controllers across PlayStation, Xbox, Nintendo, and third-party brands.
No download required
Find out if your controller still has it
Plug in, press a button, and get a full diagnostic in seconds. Free forever.
Start Testing Now