What is screenres.app?

screenres.app is a free, privacy-first web application that instantly detects your screen resolution, browser viewport, device pixel ratio, color depth, and refresh rate. All diagnostics run 100% client-side in your browser — nothing is sent to any server.

Does screenres.app collect any user data?

No. screenres.app collects zero personal data. There are no analytics scripts, no cookies (except a theme preference in localStorage), and no server-side processing. Your display information never leaves your browser.

Who built screenres.app?

screenres.app was created by J. Hassan, a Display Technology Specialist and Front-End Engineer. The site combines diagnostic tools with comprehensive educational guides about display technology.

Is screenres.app free to use?

Yes, all tools and guides on screenres.app are completely free. The site is supported by non-intrusive advertising and does not require any account, download, or subscription.

About screenres.app

A privacy-first screen diagnostic tool built by display technology enthusiasts for developers, designers, and power users.

20+

Diagnostic Tools

Data Collected

Cookies Set

100%

Client-Side

Our Mission

screenres.app was born from a simple frustration: every screen resolution checker on the web was either plastered with ads, harvesting user data, or lacking the advanced features developers actually need.

We set out to build the most comprehensive, most beautiful, and most private screen diagnostic tool on the internet. No ads, no tracking, no compromises.

🔒

Zero tracking, zero cookies, zero server-side processing. Your data never leaves your browser.

⚡

No loading spinners, no server calls. Every metric is computed in real-time using native browser APIs.

🔧

PPI calculators, CSS media query generators, responsive sandboxes — tools pros actually use.

🎨

Clean dark-mode interface that respects your eyes and sets the standard for utility design.

Meet the Team

💻

J. Hassan

Display Technology Specialist & Front-End Engineer

J. Hassan is a front-end engineer with a decade of experience in responsive design, display technology, and browser APIs. He built screenres.app out of frustration with ad-heavy, privacy-invasive resolution checkers — creating a tool that developers and designers can actually rely on. His work focuses on making display diagnostics accurate, fast, and fully client-side.

screenres.app/about

Technical Foundation

screenres.app is built with performance and transparency in mind. Zero external dependencies beyond Google Fonts.

Vanilla JavaScriptScreen APIWindow Management APICSS Custom PropertiesJSON-LD SchemaZero Dependencies

Sources & References

All diagnostic data is sourced from W3C/WHATWG specs:

MDN: Screen API — Resolution detection
MDN: devicePixelRatio — DPR measurement
W3C: Window Management API — Multi-screen
W3C: CSS Values and Units — Reference pixel

Contact

Email: hello@screenres.app — We respond within 48 hours.