28 display test patterns viewable in any browser — desktop, phone, tablet, or VR headset.
No SteamVR, OpenXR runtime, or Chrome flags required. On Quest and other standalone headsets,
tap "Enter VR" to view patterns in immersive fullscreen.
How to use: Tap any pattern below to view it fullscreen. Use ◄/► arrows or keyboard
(← → keys, Space, Esc) to navigate between tests. In VR, use the trigger (right) for next and
squeeze/grip (left) for previous; press the system button to exit.
Detecting WebXR…
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Tap screen to toggle controls — ← → keys to navigate — Esc to exit
