Stick Drift Test
Joystick Accuracy Online Checker

Joystick accuracy refers to how precisely your analog stick reports its position to the game, particularly how consistently it returns to absolute center zero when released. A perfectly accurate joystick registers 0.000 on both the X and Y axes when untouched. Poor accuracy means the stick rests off-center by some measurable amount, which in gameplay translates to your character walking, your camera drifting, or your aim slowly shifting without input. This is called stick drift and it is one of the most common controller hardware failures affecting PS5, PS4, Xbox, and Switch Pro controllers. Our free online joystick accuracy checker measures this with 3-decimal precision, no registration required.

Testing PS5 DualSense joystick accuracy is completely free and requires no registration. Connect your DualSense to your PC via USB-C or pair it via Bluetooth. Open this page in Chrome or Edge, then press any button on your DualSense to trigger detection. The live drift heatmap will immediately begin plotting your stick positions. For the most accurate test result, click Start Accuracy Test, then release both sticks completely and keep your hands off them for the full 10-second window. The tool will calculate your return-to-center accuracy and give you a grade from S to F along with a precise drift magnitude reading. Download your report as evidence if your DualSense is under warranty.

An ideal joystick accuracy score on our free online checker is 90 or above which corresponds to an S or A grade. This means your stick returns to center within 0.020 magnitude consistently during the idle test. Most new controllers fresh from the box score between 88 and 100. A score between 70 and 89 is grade B which means minor drift that may be slightly perceptible in precise games like first-person shooters. A score between 50 and 69 is grade C indicating moderate drift that will affect most gameplay. Below 50 is grade F meaning severe drift that makes the controller very difficult to use. If your score has dropped significantly from when the controller was new, drift degradation is occurring and cleaning or potentiometer replacement is recommended.

The polar trajectory map is a circular canvas that records every position your left analog stick visits and renders it as an accumulating heatmap. As you rotate the stick in a full circle, each position is plotted and older positions fade slightly to show recent vs historical path. The outer ring of the circle represents full deflection. A healthy controller with good range of motion will fill the outer ring completely when you trace a full circle. Gaps in the ring reveal directions where your stick cannot reach full deflection, which could indicate a worn spring, mechanical obstruction, or damaged housing. The center cluster of dots shows how consistently your stick returns to zero when released. A tight dense cluster at the exact center indicates excellent return-to-center accuracy. A scattered cluster indicates drift.

Yes, our free online joystick accuracy checker works fully with Xbox Series X and Xbox Series S controllers. Connect your Xbox controller via USB to your Windows or Mac PC and open this page in Chrome or Edge. Press any button to trigger the Gamepad API detection. The tool reads all XInput axis data at full precision and runs every diagnostic including the drift heatmap, accuracy score, polar trajectory, waveform monitor, and 300-sample timeline. For the latency and most stable readings, use a wired USB connection rather than Bluetooth. The free accuracy test and downloadable report work with no registration required. If your Xbox controller is under the standard 90-day warranty, our report provides documented evidence of the drift severity you can include in your support request.

The waveform monitor displays four real-time bar charts corresponding to the raw axis output of Left Stick X, Left Stick Y, Right Stick X, and Right Stick Y, each updating 60 times per second. The height of each bar represents the absolute value of the axis reading scaled to the display height. When your stick is at rest and the controller has no drift, all four bars should remain flat at their minimum height because the axes are reporting close to zero. If you see persistent bar height above the baseline while your sticks are untouched, that activity represents real electrical noise coming from the potentiometer. If the bars oscillate rapidly at rest, the potentiometer is generating unstable readings which will cause erratic drift behavior in games. Our waveform monitor is one of the most direct ways to visualize electrical noise and drift, available free online with no registration.

The drift rate percentage shown in our free online joystick accuracy checker represents what proportion of all recorded samples exceeded the 0.020 drift threshold during your session. A healthy controller with no drift should show 0% or very close to it, since virtually all idle samples should be below threshold. A drift rate of 1 to 5 percent is generally acceptable and within the range of normal hardware variation. Between 5 and 15 percent indicates minor drift that may need an increased in-game deadzone. Between 15 and 40 percent means consistent moderate drift that will affect gameplay in most titles. Above 40 percent indicates severe persistent drift that will make precision gameplay very difficult. The drift rate is more informative than peak drift alone because it tells you how consistent and repeatable the problem is, not just the worst case reading. No registration is needed to view this data.

Nintendo Switch Joy-Con controllers connect directly to the Switch console rather than to a PC as standalone USB devices, so they cannot be tested directly with our free online joystick accuracy checker without an adapter. The most practical option is a USB Joy-Con grip adapter that presents both Joy-Cons as a single HID gamepad to your PC, which our tool can then read. The Nintendo Switch Pro Controller however connects directly via USB-C to any PC and is fully supported with no registration required. If you document Joy-Con drift with our tool using an adapter, Nintendo has a free Joy-Con repair program available in many countries due to the widespread nature of the drift issue. Our downloadable report provides timestamped evidence of the drift severity that you can reference when contacting Nintendo support.

Our free online joystick accuracy checker reads raw analog axis values directly from the Web Gamepad API which in turn reads from the controller's USB HID report or XInput interface. These are the same raw potentiometer voltage readings that any professional diagnostic tool would access. The precision is limited by the controller hardware itself, typically 8-bit (256 steps) or 16-bit (65536 steps) resolution depending on the controller. Our 3-decimal display represents the normalized range from negative 1.0 to positive 1.0 which is how the browser exposes axis data. The only difference between our free online tool and a professional hardware analyzer is that hardware tools can measure raw ADC voltage before normalization. For the purposes of detecting drift, diagnosing accuracy issues, and documenting severity for warranty claims, our free online tool is equivalent in practical terms. No registration is required and no data leaves your browser.

Our free online joystick accuracy checker works best in Google Chrome and Microsoft Edge which both implement the full Web Gamepad API including polling rate, vibration actuator access, and accurate raw axis values. Opera is also fully compatible. Firefox supports most controllers but has limited compatibility with some models and does not support the vibration API. Safari on macOS 14 and later has basic Gamepad API support with some restrictions on polling frequency. For the most accurate 60fps axis readings we strongly recommend Chrome on Windows with your controller connected via USB. Bluetooth connections introduce slight input smoothing on some systems which can affect the precision of drift magnitude measurements. The tool works on Windows 10 and 11, macOS 12 and later, Ubuntu Linux, Android Chrome, and ChromeOS. No registration is required on any platform.