Every controller test in one place
Pick the symptom you are chasing. Each tool explains what it measures, how to read the result and what to try next.
Sticks
Stick drift testerLeave your sticks untouched for 3 seconds and get the exact center offset, noise and the smallest deadzone that hides it. Free, runs in your browser.Circularity testRoll each stick along its outer edge and measure angular coverage and average radial error. Spot flat spots, dead angles and worn stick gates.Linearity & precisionSweep a stick from center to edge and score linearity, tremor, step resolution and monotonic travel. Find out whether small aims register smoothly.Calibration wizardA guided center, range and auto tune wizard that builds a correction profile for your sticks. Nothing is written to the controller, so it cannot brick it.
Feedback and sensors
Vibration testFire the heavy and light rumble motors separately, set strength and duration, and confirm each side of your Xbox, PS5 or PS4 controller still shakes.Battery & light barSee the battery level and charging state of a DualSense or DualShock 4, then test the light bar, player LEDs and rumble motors from your browser.Gyro testRead live gyroscope and accelerometer values from a DualSense or DualShock 4 over USB with WebHID. Check for sensor noise and dead axes.
Inputs and timing
Button testerPress every button once and get a checklist of what registered, analog values for triggers and a timeline of combos. Catches sticky and double clicks.Polling rate testKeep a stick moving and read the update rate, interval and jitter your browser actually receives. Compare USB, Bluetooth and 2.4 GHz dongles.Reaction timeWait for the cue, press any button, and get your reaction time with a five round average. Measures you and your setup, not just the controller.
Other devices
Steering wheel testCheck wheel rotation, pedal travel and shifter buttons with raw axis values. Works with most USB racing wheels that your browser recognises.Arcade stick testVerify every lever direction and button on an arcade stick or hitbox, with simultaneous press support and an input history for motion inputs.Flight stick testSee every axis, throttle, rudder and hat switch your flight stick or HOTAS reports, with raw values and button indices for game binding.MIDI testerMonitor notes, velocity, pitch bend and control change messages from any MIDI keyboard, pad or DJ controller using Web MIDI.