Controller Tester
Test controller drift, circularity and deadzones
Controller Tester launched on January 29, 2026 with 3 votes, #5,632 of 14,584 launches that month and more than 50% of that year's launches.
What it does
A free web-based tool to diagnose gaming controllers without installing software. It provides instant visual feedback for joystick performance, including: Stick Drift Testing: Measure drift magnitude to see if your sticks move on their own. Circularity Check: Calculate the average circularity error to test precision. Input Visualization: View real-time X/Y coordinates and button presses. Works with all major gamepads, including ALPS, Hall Effect, and TMR sensors.
The controller tester works best on Google Chrome. Connect your controller using a cable and click buttons. Move joysticks and check joystick circularity by
by Marcus Richardson June 18, 2026 The controller tester works best on Google Chrome. Connect your controller using a cable and click buttons. Move joysticks and check joystick circularity by moving both stick slowly around. If your sticks are moving by itself in resting position or if you have drift magnitude of over 0.02 then you probably have stick drift in your controller. If you’re experiencing stick drift then make sure to check our guide on Hall Effect Controllers for PC, Xbox and PS5 – these have magnetic sticks which don’t develop stick drift over time. Our gamepad tester works with any gamepad joysticks: ALPS, Hall effect and TMR ones to detect stick drift.…from hlplanet.com
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ControllerTest-test gamepads,stick drift and polling rate by browserJun 2026 · controllertestonline.com · ▲5Run a full controller test online. Check buttons, sticks, triggers, drift, deadzone, polling rate, vibration and export a browser-based health report.
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