Flagship Diagnostic

Full Diagnostic Wizard

Run a 2-minute diagnostic checkup on your PS5, Xbox, or Switch controller. Test stick drift, buttons, triggers, and rumble in one place. Free and instant.

Step 1: Analog Stick Calibration & Drift

Rotate both analog sticks in full circles, then release them completely.

Left Stick Drift 0.0%
Right Stick Drift 0.0%
Circularity Error 0.0%

Step 2: Button Response & Ghosting

Press every button on your controller once. Each button will light up green when confirmed.

Cross / A
Circle / B
Square / X
Triangle / Y
L1 / LB
R1 / RB
Share / Back
Options / Start
L3 (Left Stick Click)
R3 (Right Stick Click)
D-Pad Up
D-Pad Down
D-Pad Left
D-Pad Right

Step 3: Trigger Pressure Linearity

Press L2 and R2 slowly from 0% to 100% full pull.

L2 Trigger 0%
R2 Trigger 0%

Step 4: Vibration Motor Test

Click below to test heavy and light rumble motors.

Diagnostic Results: Controller Health Score

88 GRADE A

Your controller is in Excellent condition! Stick drift is negligible and all buttons respond within nominal thresholds.

View Full Printable Report →

Diagnostic Scoring System

Our diagnostic combines 6 hardware metrics into a single 0-100 score. Grade A+ (95-100) indicates competition-grade performance. Grade C or lower indicates wear requiring deadzone adjustments or thumbstick module replacement.

What would you like to do next?

Fix Problem

Repair Guide

Step-by-step tutorial to calibrate or repair your controller.

View Repair Guides
Optimize

Game Settings

Get optimal deadzone & sensitivity settings for Apex, COD, Fortnite.

Optimize Settings
Upgrade

Controller Recommendations

Compare replacement controllers with hall-effect anti-drift sticks.

Compare Models

Need a printable diagnostic certificate?

Generate an official PDF test report to submit for warranty claims or resale proof.

Generate PDF Report

Related Diagnostic Tools

Stick Drift Tester

Isolated 0.1% precision stick drift test.

Button Tester

Test button ghosting and response speed.

Trigger Tester

Analog L2/R2 pressure curve analyzer.

Vibration Tester

Test haptic rumble motors independently.

Complete Controller Hardware Diagnostic Guide

Whether you are experiencing phantom camera movement in competitive shooter games or suspect physical button wear, running a full diagnostic is the fastest way to pin down hardware faults before buying a replacement controller.

What We Check in the 5-Step Wizard

  • Analog Stick Center Offset: Detects microscopic voltage variance in resting thumbstick potentiometers.
  • Circularity Range Error: Verifies whether your thumbsticks reach 100% full diagonal displacement.
  • Button Matrix Ghosting: Ensures all face buttons, shoulder bumpers, and D-pad inputs trigger independently.
  • Trigger Linearity Curve: Tests whether analog triggers increase smoothly from 0% to 100% without dead spots.
  • Haptic Rumble Actuators: Triggers dual heavy and light vibration motors to test motor health.

Frequently Asked Questions

How long does the Full Diagnostic take?

The complete diagnostic takes approximately 2 minutes and tests analog stick drift, circularity error, button response matrix, trigger linearity, and vibration rumble motors.

What is the Controller Health Score™?

The Health Score is a 0–100 proprietary algorithm that combines drift percentage (30%), circularity (20%), button response (15%), trigger linearity (15%), vibration (10%), and polling rate (10%) into a letter grade from A+ to F.

Does this test require any software or driver downloads?

No. The entire test runs locally inside your web browser using the standard Web Gamepad API. No software or extensions are required.

100% Client-Side

All Gamepad API data stays in your browser. Zero tracking or data collection.

Instant Results

No downloads, plugins, or software installation needed. Works instantly.

Free Forever

No paywalls, subscription requirements, or hidden usage limits.