L2 Trigger
L Analog Stick
Overall Health
Software Calibration
Controller Visualizer
R2 Trigger
R Analog Stick
Smart Diagnostics
Connect a controller and press any button to begin diagnostic sweep...
Hardware Profile
Raw Performance Data
Vibration Testing
Free Online Gamepad Tester – Test PS5, PS4, PS3, Xbox Controller & Stick Drift
Test your controller online free – PS5 DualSense, PS4 DualShock, Xbox & PC gamepads. Check stick drift, buttons, vibration trigger pressure & polling rate instantly.
Stick Drift Analyzer
Real-time stick drift test for PS5 DualSense, PS4 DualShock and Xbox controllers
Precision Hardware Drift Diagnostics
Is your crosshair wandering or your character moving without touch? Our sub-millimeter analyzer tracks real-time analog stick sensor fatigue, centering deviation, and potentiometer degradation before it ruins your competitive gameplay.
Drift Radar
Diagnostics Breakdown
Optimal Health
Perfect centering. Typical for brand new controllers or premium hall-effect sticks. No drift detected.
Normal Wear
Minor mechanical wear on potentiometers. Setting a slight in-game deadzone will easily fix this.
Severe Drift
Heavy sensor fatigue. Requires deep cleaning, part replacement, or a significant deadzone offset.
Calibration Center
Free controller calibration tool for PS5, PS4, and Xbox — fix drift, deadzone, and trigger issues
Precision Controller Tuning Suite
Most perceived stick drift isn't mechanical failure — it's uncalibrated center offsets. Benchmark your true physical resting point, tune competitive micro-deadzones, and evaluate analog trigger actuation depth across 256 discrete levels.
1. Find True Center
Place your gamepad on a flat surface without touching the sticks, then run our controller calibration test to read the true resting values. This nullifies minor drift caused by natural stick wear — no cleaning or repair needed.
2. Measure Deadzone Limits
Not sure what deadzone to set in-game? Our joystick tester shows you exactly where your stick starts registering movement, so you can dial in the smallest deadzone that still stops unwanted drift — instead of guessing.
3. Test Trigger Depth
Worn-out rubber pads on L2/R2 or LT/RT often stop triggers from reaching full 100% actuation. Our trigger depth test measures the exact pressure range, so you know for sure whether your triggers just need calibrating or actually need replacing.
Polling Rate Benchmark
Test your controller's input lag online — measure polling rate from 125Hz to 1000Hz
Real-Time Polling Rate Benchmark
Measure the exact delay between your physical inputs and browser registration. Compare Bluetooth packet loss versus wired USB polling stability from 125Hz (8ms) up to overclocked 1000Hz (1ms) tournament response rates.
Latency Grapher
Watch your controller's response speed plotted in real time as you play. A wired USB connection usually beats Bluetooth by a wide margin this graph shows you the actual numbers instead of just telling you to "use a cable."
Performance Matrix
Vibration Laboratory
Free controller vibration test — check rumble motors on PS5, PS4, and Xbox controllers
Dual-Frequency Vibration Diagnostic
Controller rumble feeling weak or rattling? Modern gamepads use two distinct motors: a high-frequency micro-weight in the right grip and a heavy low-frequency motor in the left. Fire each motor independently to isolate burnt coils or failed drivers.
Weak Motor (High Frequency)
Usually housed in the right grip, this motor handles light, high-frequency effects subtle footsteps trigger resistance small impacts. If this side feels dead while the other still rumbles, this is the motor that's gone.
Strong Motor (Low Frequency)
Located in the left grip this is the motor behind the deep, heavy rumble you feel during explosions and collisions. When people say their controller "doesn't shake anymore," it's usually this motor that's stopped working.
Driver Integrity
Not feeling any rumble at all? It might not be the hardware — your OS drivers may not support haptic feedback properly. Rumble testing works best on Windows using Chrome or Edge; other browser/OS combinations can silently block vibration signals even on a perfectly healthy controller.
Controller Utility Suite
Advanced testing tools for repair technicians and serious gamers.
Report Generator
Export a professional PDF diagnostic report. Perfect for verifying a repair job or proving a controller's condition before selling it.
Circularity Test
Test exactly how well your analog sticks track a perfect circle. A vital tool for spotting bad potentiometers or cheap aftermarket sensors.
Hardware Profiler
Instantly identify your controller's connected Vendor ID (VID), Product ID (PID), port mappings, and active input protocols.
Latest Guides & Articles
Deep dive into controller fixes, optimization tutorials, and gaming hardware reviews
Gamepad Tester Online
Learn how to diagnose hidden controller issues before they cost you a match. A complete walkthrough of our core testing suite.
Read GuideGamepad Tester PC
Dealing with Windows driver headaches? Here is how to verify if your PC is actually receiving raw inputs from your gamepad.
Read GuideGamepad Tester PS4
DualShock 4 controllers are notorious for sensor wear. Learn how to test your DS4's touchpad, triggers, and sticks.
Read GuideXbox Gamepad Tester
Whether you have an Elite Series 2 or an old 360 pad, here is how to benchmark your Xbox controller's performance.
Read GuideGamepad Tester PS3
Keep your retro hardware alive. A guide to testing the Sixaxis sensors and pressure-sensitive face buttons on your PS3 controller.
Read GuideDetailed Guide to Controller Diagnostics
Everything you need to know about gamepad health, stick drift, trigger performance, and wireless connectivity
What is a Gamepad Tester?
A controller tester is a web-based diagnostic tool that reads raw input data directly from your gamepad. Instead of guessing why your aim feels off in a game, you can use our utility to see exactly what your hardware is doing. From measuring thumbstick circularity to checking button latency, it is the fastest way to verify your controller's health.
Understanding Analog Stick Dead Zones
A dead zone is the small neutral area where stick movement is ignored by the game. As controllers age, springs loosen and potentiometers wear down, causing the stick to rest outside this exact center—leading to camera drift. Our stick drift test helps you measure these exact resting values so you can apply the perfect dead zone offset in your game settings.
Why You Should Test Trigger Pressure
Modern controllers use analog triggers (L2/R2 or LT/RT) that measure exactly how far you pull them. Over time, the internal rubber pads wear out. When this happens, a full squeeze might only register as 80% input, which ruins acceleration in racing games and fire rates in shooters. Our tool visualizes your exact pressure depth so you know immediately if a trigger needs replacing.
How to Connect Controllers to PC
For zero-latency testing, we always recommend connecting your controller with a USB cable. If you prefer wireless, enable Bluetooth on your PC and put your gamepad into pairing mode (Share + PS button for PlayStation, Sync button for Xbox). Once connected, simply press any button to wake the controller, and our app will instantly begin reading its inputs.
Frequently Asked Questions
Common questions about controller testing and stick drift diagnostics
Connect your controller to your PC or mobile device via USB or Bluetooth, then press any button to begin testing. Our browser-based diagnostic tool will instantly detect your gamepad and start streaming live metrics for every button and axis.
Stick drift is a hardware defect where your thumbstick registers movement even when you aren't touching it. To detect it, simply leave your sticks at rest and watch our Drift Radar. If the tracking dots hover outside the center crosshair or the X/Y values aren't zero, your controller has drift.
The easiest fix for minor stick drift is to increase the 'Inner Deadzone' setting in your game's options menu. If the drift is severe, you can try cleaning the potentiometer base with compressed air. Ultimately, heavy mechanical wear requires you to desolder and replace the analog sensor module.
Web-based rumble testing requires a compatible browser like Google Chrome or Edge running on Windows or Android. Due to strict OS limitations, macOS and iOS currently block browsers from sending haptic feedback signals to connected gamepads.
No, you do not need to download or install any software. Our testing suite runs entirely within your web browser using standard HTML5 Gamepad APIs, meaning all input data stays completely private on your local machine.
Explore Our Diagnostic Tools
Use these free online tools to fully diagnose your controller
Controller Utility Suite — Advanced Controller Diagnostic Tools
Free tools for repair technicians and serious gamers: PDF diagnostic reports, circularity test, and VID/PID hardware profiler — features most online gamepad testers don't offer.
Report Generator
Export a professional PDF diagnostic report – perfect for verifying a repair job or proving a controller's condition before selling it.
Circularity Test
Trace a full circle with your analog stick and see how close it comes to a perfect one. Early detection of bad potentiometers or cheap sensors.
Hardware Profiler
Instantly identify your controller's Vendor ID (VID), Product ID (PID), port mapping and active input protocol (XInput/DirectInput).
