About Screen Size Checker
Screen Size Checker is a practical display and viewport tool for checking browser viewport size, screen resolution, device pixel ratio, aspect ratio, and common device references.
The site is maintained as an independent web tool. The goal is to keep the calculators fast, readable, and useful for designers, developers, QA testers, and device buyers who need quick display measurements.
How the tools are maintained
- Calculator pages are built around direct browser measurements and simple display math.
- Device reference pages are reviewed when new models or viewport data become available.
- Guides are updated when browser behavior, responsive-design patterns, or device classes change.
Related independent projects
These are separate independent projects maintained outside Screen Size Checker. They are listed here for users who want to discover other tools, not as sitewide footer links.