Web
Device Information
Read viewport, screen, language, timezone, and selected capability hints for a reproducible browser issue report.
About this tool
When to use it
Read viewport, screen, language, timezone, and selected capability hints for a reproducible browser issue report.
How to use it
Open the page in the affected browser, select Refresh after changing the viewport, and review the fields. Copy device report when sharing the environment with a developer, removing details that are not needed.
Guide updated . Examples checked against this implementation.
Worked examples
A controlled viewport fixture
Input
Set the browser content viewport to 1280 by 720 and select RefreshExpected output
Viewport size: 1280 × 720This is a controlled example. Actual screen size, pixel ratio, and viewport size are separate values and depend on the device and zoom.
Errors and unsupported input
Connection type or device memory is unavailableThe browser may not expose that API. Record unavailable rather than treating the missing value as a hardware fault.
Continue this workflow
- User-Agent Parser: Inspect a User-Agent string alongside the actual browser-exposed hints.
Questions
Frequently asked questions
Does this identify my exact computer?
No. It shows what the browser chooses to expose. Several devices can report the same values, and values can be spoofed or reduced.