Nintendo-Style Mapping Without Guesswork
A Switch Pro controller test needs to respect the face button order users expect while still showing the browser indexes that software receives. This Switch Pro controller test uses Nintendo-style labels for A/B/X/Y, Plus, Minus, Home, Capture, L/R, ZL/ZR, sticks, and d-pad directions, then pairs them with raw Gamepad API values. That combination is important because some games show Xbox-style prompts even when a Switch Pro controller is connected.
USB and Bluetooth can produce different browser identities. A wired Switch Pro controller may report more consistently, while Bluetooth may depend on operating-system drivers and firmware. The gamepad tester displays the active player slot, connection state, mapping, and last input so you can compare both modes without guessing which device the browser selected.
This page is the right first controller test when a Switch Pro controller works in one app but not another. If every button highlights correctly here, the issue may be the game profile. If the visualizer misses a direction, trigger, or stick click, follow up with the mapping, drift, or support pages.