Skip to main content
Controller Diagnostic

8-Way D-Pad Tester

Test 8-way D-pad inputs and diagonal combinations on PS5, Xbox, and Switch controllers. Test fighting game combo precision online.

Press D-pad buttons to test 8-way directional inputs...
No Controller Detected
UP
DOWN
LEFT
RIGHT
8-WAY

Diagonal Input Recognition

Up-Left (↖)
Up-Right (↗)
Down-Left (↙)
Down-Right (↘)

D-Pad Performance Benchmarks

All cardinal and diagonal inputs should register smoothly. If diagonal inputs fail to register while individual directions work, the internal D-pad pivot rubber is worn or misaligned.

How to Get Started

Just three steps to run a complete controller test and understand your controller's health status.

01

Connect Controller

Connect your controller to your computer via USB cable or Bluetooth. If the browser doesn't respond, press any button on the controller to activate the connection.

02

Button Detection

Press each button in the visual interface and confirm the corresponding area lights up on screen. This helps troubleshoot unresponsive or double-clicking buttons.

03

Sticks & Vibration

Rotate the sticks to check linearity and drift issues; click the vibration test button to feel if the left and right motor feedback is working properly.

What would you like to do next?

Select a diagnostic calibration suite, deadzone analyzer, or high-frequency overclock tool.

Fix

Repair & Calibration

Calibrate zero-point offsets or follow step-by-step repair guides.

Optimize

Game Deadzones

Calculate exact radial vs axial deadzone overlays for Fortnite, Apex, & COD.

Telemetry

Overclock & Circularity

Verify true hardware polling Hz stability and statistical circularity grades.

Run full diagnostic checkup

Combine D-pad diagnostics with stick drift and button testing.

Why D-Pad Precision Matters for Fighting Games & Retro Gaming

Directional pads are crucial for precise movement in 2D platformers and executing quarter-circle motion inputs in fighting games.

D-Pad Mechanical Architectures

  • Silicone Rubber Membrane: Soft, quiet feel found in DualSense and DualShock 4 controllers.
  • Tactile Clicky Microswitches: Clicky, tactile mechanical switches found in Xbox Series controllers for fast actuation.

Frequently Asked Questions

Everything you need to know about testing your controller.

How do I test D-pad diagonal inputs (↖ ↗ ↙ ↘)?

Press two adjacent direction buttons on your D-pad simultaneously (e.g., Up + Right). The diagonal chip visualizer above will illuminate in green when the combination is recognized cleanly.

Why are D-pad diagonals important for fighting games?

In fighting games (Street Fighter, Tekken, Mortal Kombat), special moves and combos rely on quarter-circle and diagonal inputs. Missing diagonal registers cause dropped combos.

Does this test membrane D-pads and mechanical D-pads?

Yes! It tests standard silicone membrane D-pads (DualSense, DualShock 4) and tactile switch D-pads (Xbox Series X/S, Switch Pro).

How this test works & its limits
  • This test reads your controller through the browser's standard Gamepad API — no drivers, no installs, nothing leaves your device.
  • Readings depend on connection mode: Bluetooth reports at lower rates than USB. Compare like-for-like (wired vs wired).
  • We measure the input reaching the browser — display lag and game-engine queues are outside this test's view.
  • A clean reading now does not guarantee no drift in-game: deadzones differ per game, and wear develops over time. Use the Drift Timeline to track yours.
  • This is a diagnostic, not a hardware-lab certification. For repair or RMA decisions, confirm with a second run or second tool.
Read the full methodology
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.