Gamepad

Gamepad circularity test

Trace the outside edge of the stick to see whether its reported shape and maximum reach are balanced across directions.

Processed locallyNo installationGuided test

How this test stays free. At the end, you can watch a short ad to unlock the report. If no ad is available, the result opens automatically. Premium skips this step.

Local in-browser diagnosis

Stick circularity and range

Rotate each stick around its outer edge to measure coverage, shape and range.

Connect a gamepad, then press a button or move a stick.

Live buttons and triggers

Buttons will appear here after a gamepad is detected.

Test progress

Ready to start. Data stays in this browser.

Reading and analysis happen locally. We do not send gamepad values or the device identifier to analytics.

What this test checks

Visualise a controller stick's full reported range and estimate circularity, edge coverage and directional consistency.

InputAnalyzer processes test events locally and does not upload your raw inputs or result values.

How to run the test

01

Start from the centre

Release the selected stick, start the capture and wait until the centre is registered.

02

Trace the outer edge

Push the stick fully outward and rotate it slowly through several complete circles.

03

Cover every direction

Pay particular attention to corners or sectors that remain empty, then finish the capture.

How to read the result

Observed signals, not artificial certainty.

Balanced coverage

The trace reaches a similar radius around the full rotation without obvious missing sectors.

Uneven reach

Flat areas, spikes or a sector that consistently falls short may indicate calibration, wear or mapping differences.

What this test cannot prove

What the browser cannot see

  • Circularity describes the normalised axes reported to the browser, not the physical gate or sensor geometry.
  • Moving too quickly or failing to hold the outer edge can create apparent gaps that are not hardware faults.
  • Results are browser-based estimates, not a physical hardware diagnosis.

Useful next tests

Frequently asked questions

Short answers before you test again

Should the trace form a perfect circle?

No. Some controllers report a square-like or clipped range by design. Consistent coverage matters more than a perfect shape.

What does a missing sector mean?

It can mean reduced reach, but it can also come from an incomplete rotation. Repeat slowly before drawing a conclusion.