Instant Controller Tester
for Pro-Level Diagnostics

Start the controller tester to expose stick drift, faulty buttons, and trigger issues on PS5, PS4, Xbox, Switch Pro, and any USB/HID gamepad. All in real time.

Connect controller via USB or Bluetooth

and press any button

Bluetooth
USB

Press any button on your controller to begin

📋 Complete Diagnostics

Everything you need to test your controller

Professional-grade controller analysis right in your browser — no downloads, no data collection, just precise diagnostics.

🎯

Analog Stick Drift Detector

Real‑time X/Y coordinates with circular boundary. Detect even 0.001 drift instantly.

📊

Trigger Pressure Bars

Analog range 0..1 with percentage display. Test L2/R2 sensitivity.

🔄

Polling Rate Monitor

Shows exact update frequency in Hz. Verify controller response time.

⚡

Vibration Test

Test rumble motors with one click. Supports dual motors.

🎮

Multi-Controller Support

Test up to 4 controllers simultaneously. Perfect for tournaments.

🔍

Dead Zone Visualization

See exactly where your sticks rest. 15% dead zone circle.

1

Quick Start Guide

01

Connect your controller

Via USB cable or Bluetooth pairing

02

Press any button to wake

Some consoles require initial button press

03

Watch real-time feedback

All inputs visualized instantly above

04

Test vibration

Click "Test vibration" on any controller card

✅ Supported Controllers

• Xbox Series X|S • Xbox One • PS5 DualSense • PS4 • Switch Pro • Steam Deck • 8BitDo • Logitech F310

Any HID-compliant gamepad works — no drivers needed.

🎯 What is Controller Drift?

Analog stick drift happens when potentiometers wear out, causing movement when untouched. Our controller tester measures resting values — anything above |0.15| indicates drift.

Drift severity scale0.00 = perfect
Healthy (0-0.15)Moderate (0.15-0.3)Severe (0.3+)

⚪ Dead Zones Explained

The dead zone is the area near center where movement is ignored. Our visualiser draws a faint 15% circle — if your stick rests inside, it's healthy.

Ideal resting position

Inside dashed line = no drift

🔧 Troubleshooting Tips

  • • Not detected? Try Chrome/Edge (best Gamepad API support)
  • • Steam conflict? Disable Steam Input temporarily
  • • Mac Bluetooth? Pair in System Settings first
  • • Xbox Wireless? Use official adapter on Windows
🔒

100% Safe & Private

All processing happens locally. Zero data leaves your device — no tracking, no servers. Pure JavaScript, complete privacy.

Frequently Asked Questions

Everything you need to know about testing your controller

Is this controller tester free?▼

Yes, forever free and open-source. No hidden fees.

Does it work with PS5 controller?▼

Absolutely. DualSense works wired and wirelessly on Chrome, Edge, Firefox.

Can I test Xbox controller on PC?▼

Yes, Xbox One/Series X|S work via USB, Bluetooth, or dongle.

Does it detect stick drift?▼

Yes, with 5 decimal precision. Shows exact drift values.

Is my data stored?▼

Never. All processing happens locally — no servers.

Does it work on mobile?▼

Android with USB OTG / iOS 16.4+ supports Gamepad API.

Why is controller not detected?▼

Try different cable, restart browser, disable Steam/DS4Windows.

How to fix drift?▼

Calibrate in OS, clean with isopropyl alcohol, or replace stick module.

Does it support vibration?▼

Yes, if browser and gamepad support it (Chrome/Edge on Windows/macOS).

Can I test multiple controllers?▼

Up to four at once, each with dedicated card and real-time updates.