# Gamepad Tester

> Free gamepad tester. Check stick drift, test all buttons and axes, and set custom deadzones. Runs completely locally in your browser. Works entirely offline.

- **Category:** Gaming
- **URL:** https://www.teafun.cyou/tools/gamepad/
- **Privacy:** Runs entirely in your browser — no uploads, no account, no tracking.
- **Also known as:** gamepad tester, controller test, stick drift, deadzone checker, controller drift
- **Related tools:** [Monitor Refresh Rate](https://www.teafun.cyou/tools/monitor/), [Mouse Sensitivity Converter](https://www.teafun.cyou/tools/sensitivity/), [Mouse Acceleration Detector](https://www.teafun.cyou/tools/mouseaccel/)
- **Tags:** Gaming, Input, Controller

## About

Test your controller inputs, check for stick drift, and set custom deadzones. Runs entirely in your browser.

## How to Use the Gamepad Tester

Plug the controller in via USB or pair over Bluetooth, then press any button — Chromium and Safari only expose `navigator.getGamepads()` after a user gesture for fingerprinting protection. Once detected, axes and buttons populate live. Set the controller flat on a desk, hands off the sticks, and click Capture Baseline; the tester samples 120 frames to record the resting analog reading. Adjust the deadzone slider (typically 5–15%) to match what your game uses. Any analog motion outside that range past the baseline registers as drift. Use the live crosshair visualiser to spot small circular wandering that numbers alone can hide. If the controller reports `vibrationActuator.playEffect`, the Vibration Test panel lets you exercise the rumble motors with custom weak and strong magnitudes and durations — this is the modern dual-rumble API that replaces the older `pulse(value, duration)` interface and works on Chromium-based browsers.

## Why Testing Your Controller Matters

Drift compounds invisibly. In FPS games, even 3% drift produces a steady aim creep that the muscle memory unconsciously corrects, raising the effective sensitivity required to hold the reticle still. In racing games, drift on the left stick biases the steering line; in 3D platformers it nudges the camera. Detecting drift early lets you raise in-game deadzones surgically — usually only on the affected axis — rather than blunting the whole stick. Beyond drift, the tester verifies button mapping when buying second-hand or after replacing thumbstick modules: a quick walk through every face button, shoulder, and trigger catches non-functioning contacts before you commit to a return window. Input streams stay in the local tab; the tester never round-trips analog data to a server, so testing borrowed controllers or shop loaners carries no privacy cost.

_SEO title: Gamepad Tester – Stick Drift & Deadzone Checker | TeaFun_

## FAQ

### What is stick drift?

Stick drift is when an analog stick registers movement without physical input. It's caused by worn potentiometers inside the controller.

### What deadzone should I use?

A deadzone of 5–15% is typical for most games. Higher values mask drift but reduce precision in fine movements.

### Does this tool require any software or account?

No. The Gamepad API runs entirely in your browser. No installs, accounts, or uploads required.