Free online tool
Controller test
Six short steps, about a minute. We check the sticks for drift, how far they reach, every button, the triggers and the vibration — and at the end we tell you what exactly is wrong and what it takes to fix it. All of it happens in your browser: nothing is sent to a server and nothing is installed.
- Connect the controller — over a USB cable (most reliable) or over Bluetooth.
- Press any button on it — ✕ or PS, for example. The browser only “sees” the controller after that first press, which is why it says no controller is connected until then.
L3 and R3 are the sticks themselves pressed straight down. If a button never lights up although you are pressing it, that is something for the repair shop.
A trigger should reach 100% when pressed all the way down and return to 0% when you let go of it.
Vibration often does not work over Bluetooth — if you feel nothing, run the same test over a USB cable before you decide the motor is faulty.
What the results mean
How to read the test
Drift at rest
How far the stick wanders while you are not touching it. Under 2% is normal. Over 5% means your character or your aim will start moving on its own — that is the classic drift, and it is usually solved by replacing the analog stick.
Range reached
Shows whether the stick reaches the edge in every direction when you rotate it in a circle. Below 90% means some directions never receive full movement — the cause is a worn stick or a calibration that has shifted. If the stick is mechanically sound, or has just been replaced, calibrating the centre and the range can bring the full movement back.
Buttons and triggers
A button that lights up without being pressed is stuck. A trigger that does not reach 100%, or does not return to 0%, has a worn sensor or dirt inside — both are dealt with in the shop.
Why the test is accurate
We read the values the controller sends to the browser directly — the same ones the console receives. That is why the result shows the real state of the hardware and not how it feels in one particular game.
Found a problem?
Controller repair at Ekspert BG
We replace drifting analog sticks, buttons, triggers, batteries and USB ports. Bring the controller in or send it by courier.