Neutral sample
Stick drift and deadzone
Set the controller on a steady surface and do not touch either stick during the sample.
Ready for an 8-second sample.
Free · private · no download
Test your game controller online. Know every input before the match.
See what your browser actually receives from your sticks, buttons, triggers, D-pad, and vibration system. Built for quick checks, used-controller inspections, and repair verification.
- Works with browser-recognized gamepads
- No account required
- Results stay on your device
Controller readyLIVE INPUT
Left stick0.002neutral offset
Buttons18/18responding
ConnectionUSBreported path
Demo values shown · your live test begins below
Built for browser-detected controllers
XboxDualSenseDualShockSwitch Pro8BitDoGameSirLogitechGeneric USB
All-in-one diagnostic
One test bench. Every essential signal.
Connect a controller and press a button. The test starts in your browser without an upload, installer, or sign-in.
Local-only test
Connect with USB, Bluetooth, or a supported wireless adapter. Then press any controller button so your browser can expose it. Your readings are processed on this device.
Detected device
No controller detected
Gamepad API ready · waiting for input
L1
R1
L
R
Update rate— Hzbrowser-observed
Buttons—reported
Axes—reported
Mapping—browser label
Live input
Sticks and triggers
Left trigger 0%
Observed range: not sampled
Right trigger 0%
Observed range: not sampled
Full movement
Range and circularity
Rotate each stick slowly around the outer edge, then sweep the center in several directions.
Move the sticks to begin range tracking.
Input coverage
Buttons and D-pad
Press and release every available control. Analog buttons show their reported value.
No button activity yet.
Raw browser data
Axes and mapping
Use these values to spot unusual layouts. A blank standard mapping does not automatically mean the controller is defective.
View raw browser data
Connect a controller to view raw data.
Optional capability
Vibration check
Browser haptics are not available for every controller, connection method, operating system, or browser.
Connect a controller to check browser support.
Did you feel the pulse?
Private test record
Keep your result
Reports are stored in this browser. Sharing is optional and puts only the selected result in the link.
Diagnostic readings describe what this browser receives, not electrical measurements from the controller. Confirm important findings in the game or device where you plan to use the controller.
Three clean steps
From connected to confident.
The browser reads controller reports through the Gamepad API. We turn those raw values into understandable checks.
Connect
Use USB, Bluetooth, or a compatible wireless adapter. Press any button to allow browser detection.
Exercise every input
Move sticks slowly, press every button, squeeze both triggers, and run the hands-off neutral sample.
Save the evidence
Keep a local report for comparison, export JSON or CSV, or print a repair and resale checklist.
Focused test tools
View all controller tests Diagnose the symptom, not the guess.
Neutral sampling
Stick drift test
Sample untouched sticks and estimate a practical software deadzone from observed neutral noise.
Open drift test → Input coverageButton test
Confirm presses, releases, analog values, and basic signs of repeat or stuck input.
Open button test → Full rangeCircularity test
Trace each stick around its outer gate and find directions that stop short or overshoot.
Open circularity test → Analog travelTrigger test
Watch reported values from rest to full pull and compare left and right range.
Open trigger test → Raw layoutMapping test
See the button and axis indexes exposed by the operating system and browser.
Open mapping test → Fresh samplesObserved update rate
Estimate how often this browser receives a changed gamepad timestamp—without calling it true latency.
Open rate test →
Read the result correctly
A browser test is powerful—when its limits are clear.
GameControllerTest.com measures the values exposed to a web browser by your operating system. That makes it useful for finding obvious drift, missing controls, range problems, strange mappings, and inconsistent behavior. It does not directly inspect the controller’s electronics, firmware logs, wireless radio, or a game’s own input processing.
For a buying decision or repair check, compare USB and wireless behavior, repeat the neutral sample, and verify important findings inside the game or console where the controller will be used.
Practical troubleshooting
Browse all fix guides →When the controller does not behave.
Connection
Controller not detected in the browser
Work through browser support, cable, focus, permission, and operating-system checks.
Fix detection → Game setupWorks here, but not in the game
Separate hardware input from launcher, Steam Input, mapping, and game support issues.
Check game setup → Button faultButton repeats or double-inputs
Tell physical chatter apart from software remapping, turbo modes, and duplicate input layers.
Find the cause →Accountable publishing
A useful diagnostic needs clear ownership and clear limits.
GameControllerTest.com is published by JSAN Media. Jeet oversees product and editorial work, with public methodology, correction, privacy, and advertising standards.
Before you test
Straight answers to common questions.
Can this test every controller in the world?
It can test controllers that your operating system and browser expose through the Gamepad API. Support varies by controller, browser, operating system, connection method, driver, and mode. A controller can work in a console or game while remaining unavailable to a browser.
Does the website upload my controller data?
No. Live readings and saved My Lab reports stay in your browser by default. If you choose “Copy share link,” the selected report is encoded into that link so anyone who receives the URL can read it.
Can a browser measure true controller input latency?
Not by itself. We show browser-observed update frequency based on fresh gamepad samples. End-to-end latency also includes the controller, connection, operating system, browser scheduling, display, and game, so it requires specialized external measurement for a defensible number.
What stick drift value is acceptable?
There is no universal cutoff. A small stable offset may disappear inside a game’s deadzone, while noisy or growing movement can still cause trouble. Use the hands-off sample, repeat it, and compare the result with the deadzone options in your game.
Ready when your controller is
Run the free test
Get a useful answer in under a minute.
Connect, press any button, and watch every input your browser can see.