Manual cycle onlyRetention checkUse briefly
Burn-In Test
Use static solid colors and a manually started cycle mode to look for image retention, residual shadows, and obvious burn-in traces.
Auto-cycling is never enabled by default and must be started manually.
Long fullscreen high-brightness sessions can stress OLED panels, so use the cycle mode briefly and intentionally.
Device info
Live browser-visible values and quick operating status.
Screen width
--
Viewport
--
Device pixel ratio
0.00
Fullscreen
Off
Shortcuts stay active outside input fields: use left/right arrows to switch patterns, F for fullscreen, and Esc to leave.
Controls
Switch patterns manually or jump into fullscreen for a cleaner inspection view.
Cycle mode is meant for short inspection only and should not be left running on a bright panel for long sessions.
← / → switch patterns
F enter fullscreen
Esc exit fullscreen
Pattern surface
Use red for quick retention and stuck-pixel checks.
Burn-in
Retention red
#FF453A
Use red for quick retention and stuck-pixel checks.
Device info
Resolution, DPR, and color depth are read from the browser-visible environment.
Screen width
--
Viewport
--
Device pixel ratio
0.00
Color depth
--
Next tools
Jump into focused views when you want a more specific diagnostic flow.
Auto-cycling is never enabled by default and must be started manually.
Long fullscreen high-brightness sessions can stress OLED panels, so use the cycle mode briefly and intentionally.