Controller Diagnostic

Multi-Controller Tester

Test up to 4 controllers at the same time online. Simultaneous multi-gamepad diagnostic for PS5, Xbox, Switch, and PC controllers.

Connect up to 4 gamepads to test simultaneously...
0 Controllers Connected
Player 1 Disconnected

Gamepad 1

Left Stick: 0.0, 0.0
Right Stick: 0.0, 0.0
Buttons Active: None
Player 2 Disconnected

Gamepad 2

Left Stick: 0.0, 0.0
Right Stick: 0.0, 0.0
Buttons Active: None
Player 3 Disconnected

Gamepad 3

Left Stick: 0.0, 0.0
Right Stick: 0.0, 0.0
Buttons Active: None
Player 4 Disconnected

Gamepad 4

Left Stick: 0.0, 0.0
Right Stick: 0.0, 0.0
Buttons Active: None

Multi-Controller Setup Guidelines

All 4 gamepad slots update simultaneously. Ensure your USB hub or Bluetooth adapter supports multiple concurrent HID input devices.

What would you like to do next?

Fix Problem

Repair Guide

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

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Game Settings

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

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Controller Recommendations

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

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Run individual controller health tests

Run individual 0.1% stick drift and button matrix diagnostics for each controller.

Stick Drift Test

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Testing Multiple Gamepads for Local Multiplayer

When hosting fighting game tournaments or local couch co-op sessions, verifying controller health across all connected gamepads prevents input interference.

Frequently Asked Questions

How many controllers can I test simultaneously?

You can test up to 4 gamepads at the same time in your web browser. Each connected controller is assigned to Player 1 through Player 4 slots.

Can I test different controller brands at the same time?

Yes! You can connect a PS5 DualSense, Xbox Series Controller, Nintendo Switch Pro Controller, and a third-party gamepad at the same time.

Is this tool useful for couch multiplayer & fighting game tournaments?

Yes. It allows tournament organizers and party game hosts to verify all 4 controllers before starting matches.

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.