Gamepad Tester is a free device test tool that runs entirely in your browser — live buttons, sticks & triggers. No upload, no account, no limits.
A live view of any connected game controller through the browser's Gamepad API. Once you press a button on the pad, every button shows its pressed state (with a partial fill for analog triggers) and every axis plots its position from −1 to +1.
Multiple controllers are supported and shown side by side, each labelled with its reported id.
Browsers only reveal a gamepad after its first input — connect it and press any button. Bluetooth and USB pads both work.
In the standard mapping, 0–3 are the face buttons, 4–7 the bumpers and triggers, 8–9 select/start, 10–11 stick clicks and 12–15 the d-pad.
Every calculation happens on this page, in your own browser. Your input is never sent to a server, never logged and never used for training — which also means the tool keeps working when you are offline.