Deadzone Tester
Free Online Controller & Joystick Test

Controller deadzone is the area around the center of an analog stick where movement is ignored and treated as zero input. Every controller has some deadzone built in by the manufacturer to prevent stick drift from being registered as movement in games. Testing your deadzone online for free using our tool helps you understand exactly how large your inner deadzone is, whether it has grown due to wear, and whether your controller has developed drift that falls outside the expected deadzone radius. Our free online deadzone tester requires no registration and no download, and gives you precise measurements in seconds.

Testing PS5 DualSense deadzone is completely free and requires no registration. Connect your DualSense to your PC via USB-C or pair it via Bluetooth, then open this page in Chrome or Edge. Press any button on your DualSense to trigger detection. The live polar canvas will immediately begin visualizing both stick inputs. Gently release both sticks and watch whether the dot returns to the exact center or drifts slightly. The inner deadzone circle shown on the canvas represents your current threshold. If drift dots appear outside that circle, your deadzone setting needs to be increased or your controller needs service. All of this is free with no registration.

The inner deadzone is the circular region at the center of the analog stick range where all input is treated as zero. Any stick movement within this zone produces no output in-game. The outer deadzone is the opposite, it defines the maximum threshold at which input is treated as 100 percent. Controllers with worn springs may never physically reach the true edge of their range, so an outer deadzone ensures that near-maximum deflection still registers as full input. Our free online deadzone tester lets you independently set both inner and outer deadzone thresholds for each stick using the custom sliders, and visualizes both zones as colored rings on the live canvas.

Yes, testing your Xbox Series X or Xbox Series S controller deadzone is entirely online and requires absolutely no download. Connect your Xbox controller via USB or through the Xbox Wireless Adapter and open this page in Chrome or Edge. Press any button to activate detection. The polar trajectory canvas will begin recording your stick movement immediately. You can choose from our six built-in deadzone profiles including a Competitive profile with a very tight 2 percent inner deadzone, or use the Custom sliders to dial in exact values. The waveform bars show live XInput axis output and the history graph records the last 200 samples so you can study drift patterns over time, all free with no registration.

The polar trajectory canvas is a circular map that records the path your analog stick traces during a session. As you move the stick in a full circular motion, the canvas plots each position as a colored dot based on its distance from center. Positions inside the inner deadzone are shown in a dimmed gray since they produce no output. Positions in the active zone are shown in orange. Positions at or beyond the outer deadzone appear in black. If you rotate your stick around the full circle and then look at the polar map, a healthy controller will show an even ring of coverage. Gaps in the ring indicate directions where your stick does not reach full range. This is unique to our free online deadzone tester and is not available on other websites.

The waveform section displays four real-time bar visualizers, one for each of the four main analog stick axes: Left Stick X, Left Stick Y, Right Stick X, and Right Stick Y. Each bar represents the current raw axis value scaled to a visible height. When your stick is in the deadzone, the bars remain near their baseline because no movement is registered. When you push the stick, the corresponding bar rises proportionally to the input magnitude. Watching the waveforms while your stick is at rest is an excellent way to spot micro-drift that may not be obvious from the circular canvas. Constant oscillation in a waveform bar when your stick is untouched is a strong indicator of stick drift or deadzone miscalibration.

A large controller deadzone can have two causes. The first is a software setting in your game or system that applies an aggressive deadzone to prevent false inputs, typically set by the developer. You can check and reduce this in your game or console settings. The second cause is physical hardware wear where the potentiometers inside your analog stick have degraded, causing the stick to report off-center values even when resting. This means the game or driver must apply a larger deadzone to mask the noise. Our free online deadzone tester can confirm which cause is affecting your controller by showing you the raw hardware axis values before any game processing. If you see drift even in our tool with no deadzone applied, it is a hardware issue requiring cleaning or replacement of the potentiometers.

For competitive gaming, you want the smallest inner deadzone that does not cause false stick drift inputs during gameplay. Our Competitive preset uses a 2 percent inner deadzone which is near the hardware minimum for most controllers in good condition. To find your optimal competitive deadzone, select the Custom profile and set the inner deadzone to 0 percent, then gradually increase it until the drift dots in the polar canvas and the waveform bars settle to baseline when your stick is at rest. The value at which drift disappears is your minimum viable deadzone. Using anything larger than that wastes input range and reduces precision. Using anything smaller will cause your character or camera to drift during gameplay. Our free online deadzone tester lets you find this value accurately without any registration.

Yes, our free online deadzone tester works with any HID-compatible input device including PC joysticks, flight sticks, racing wheels, arcade sticks, and HOTAS systems. These devices typically expose more axes than a standard gamepad, and our tool reads all available axes from the Web Gamepad API. The polar canvas, waveform bars, and history graph all respond to whichever axes your device reports. For flight sticks and joysticks used in simulators, accurate deadzone calibration is especially important since even small amounts of center drift can cause unwanted roll, pitch, or yaw in aircraft. Connect your device via USB and press any button or move any axis to trigger detection. No registration or download is required.

Our free online deadzone tester works best in Google Chrome and Microsoft Edge which both have full Web Gamepad API support. Opera also works fully. Firefox supports basic axis detection but may have limited support for some controller types. Safari on recent macOS versions supports the Gamepad API with some limitations. The tool runs on Windows 10 and 11, macOS 12 and later, Ubuntu and other Linux distributions, Android via Chrome, and ChromeOS. No registration is required and no software is installed. All testing happens entirely in your browser using standard web APIs. For the most accurate raw axis data we recommend Chrome or Edge on Windows with your controller connected via USB rather than Bluetooth, as wired connections generally provide lower latency and more stable axis readings.