Resolution and density
Pixy reads CSS pixels, device pixel ratio, and estimated real pixel canvas to judge how sharp text and UI should look.
Colour capability
The browser can report colour depth and whether the display claims sRGB, P3, or Rec. 2020 gamut support.
Motion signal
Pixy estimates refresh rate and frame timing stability. This is not true pixel response time, but it is useful for browser-visible motion quality.
Use it before judging a new or old monitor
Run Pixy after connecting a new monitor, changing cables, changing scaling, enabling HDR, or changing browser and OS display settings. If capabilities look wrong, the monitor may be running in a fallback mode.
Use this checklist while Pixy runs
- Check that the cable supports the resolution and refresh rate you expect.
- Confirm the monitor is not mirrored to a lower capability display.
- Run Pixy once before and once after changing OS display settings.
- Use the diagnostic copy when asking for help in a forum.
- Save a result image if you are documenting a return or resale check.
Questions people ask
Why is my monitor not showing its advertised refresh rate?
Cable limits, OS settings, browser throttling, battery saver, or mirroring can make the browser see a lower rate.
Can Pixy identify my monitor model?
No. Browsers usually hide exact monitor model and maker.
Does a high Pixy score mean perfect colour?
No. It means the browser reports strong capability signals and the test patterns did not expose obvious issues to you.