What is the Device Info Tool?

The Device Info tool displays detailed information about the device, browser, and operating system you're currently using — all derived from what your browser exposes to web pages. No software installation or account is required.

It's useful for developers testing how a site behaves across different environments, support teams diagnosing user issues, and anyone curious about what technical information their browser shares with every website they visit.

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What Information Is Shown

Browser — your browser name, version, and rendering engine (e.g. Chrome 122, WebKit, Gecko). This is what the browser reports in its User-Agent string.

Operating system — the OS name and version as reported by the browser: Windows 11, macOS Ventura, Ubuntu, iOS 17, Android 14, and so on.

Screen and display — screen resolution (total pixels), viewport dimensions (the visible browser window area), device pixel ratio (DPR), and color depth. DPR above 1 indicates a high-density (Retina or similar) display.

Hardware — logical CPU core count and available memory (in GB), as reported by the browser's hardware concurrency API. These are approximate values browsers intentionally round or cap for privacy reasons.

Network — connection type (wifi, cellular, ethernet) and effective connection speed category (4G, 3G, slow-2G) where the browser's Network Information API is available. Not all browsers expose this.

Language and locale — the browser's configured language and locale (e.g. en-GB, fr-FR), which websites use to serve localized content.

Timezone — the IANA timezone identifier the browser is using (e.g. Africa/Lagos, Europe/London), derived from the system clock.

Touch support — whether the device reports touch input capabilities, and the maximum number of simultaneous touch points supported.

Cookies and JavaScript — whether cookies are enabled and whether JavaScript is active (if you can see this page, JavaScript is on).

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Common Uses

Cross-device testing — check what device properties a browser is reporting when testing a site on different physical devices or emulators. Confirm that screen resolution, DPR, and viewport size match your expectations.

Debugging responsive layouts — use the viewport dimensions to understand exactly what breakpoint a browser is at, which is more precise than estimating from the window size.

Support and bug reporting — when reporting a browser bug or getting help with a technical issue, share your device info to give the support team the context they need without going back and forth.

Understanding browser fingerprinting — see exactly what data your browser exposes by default. This is the same information advertising networks and analytics tools can collect without asking for any permissions.

QA and compatibility — verify that a device reports the OS version, browser version, and screen dimensions your app is designed to support.

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Privacy

This tool reads device information that your browser already exposes to every website you visit — nothing beyond what any standard web page can access. No data is sent to any server or stored anywhere. The information is read once and displayed locally in your browser.