Cihaz Bilgisi

Tarayıcı ve cihaz bilgilerini görüntüle

Geliştirici Araçları

Cihaz Bilgisi Nasıl Kullanılır

  1. 1Cihaz bilgilerinizi görüntülemek için sayfayı açın
  2. 2Tarayıcı ve sistem verilerini inceleyin
  3. 3Desteklenen özellikleri kontrol edin

Cihaz Bilgisi Hakkında

Cihaz bilgisi, tarayıcınız, cihazınız ve işletim sisteminiz hakkında kapsamlı bilgileri görüntüleyen bir araçtır.

Cihaz Bilgisi Temel Özellikleri

  • Displays browser name, version, and rendering engine
  • Shows operating system and OS version
  • Screen resolution, viewport dimensions, and device pixel ratio
  • Color depth and display color gamut
  • Timezone, language settings, and locale
  • Online/offline status and connection type (if available)
  • Hardware concurrency (number of logical CPU cores)
  • Works entirely in-browser — nothing is transmitted to any server

Örnekler

Capture environment details for a bug report

Collect browser and OS details to include in a Jira ticket or GitHub issue.

Giriş

Open the Device Info page in your browser

Çıkış

Browser: Chrome 124.0.0 | OS: macOS 14.4 | Screen: 2560×1600 (2× DPI) | Viewport: 1280×800

Verify responsive breakpoint during cross-device testing

Check the actual viewport width and device pixel ratio while testing a responsive design.

Giriş

Open in a mobile browser or browser DevTools device emulation

Çıkış

Viewport: 375×667 | Device pixel ratio: 3 | Touch: Yes

Yaygın Kullanım Senaryoları

  • Capturing browser and OS details for bug reports and support tickets
  • Verifying viewport dimensions and device pixel ratio during responsive design testing
  • Checking hardware concurrency to understand available threads for Web Workers
  • Documenting the test environment for QA testing across different devices
  • Confirming timezone and locale settings that affect date/time display
  • Teaching browser API capabilities by showing the data available to web applications

Sorun Giderme

Operating system shows as unknown

Çözüm

OS detection relies on user agent string parsing. Some browsers with privacy settings, extensions, or spoofed user agents may report incorrect or empty OS information.

Screen resolution shows an unexpected value

Çözüm

screen.width and screen.height report the physical screen dimensions. On high-DPI displays, CSS pixels differ from physical pixels. Check the device pixel ratio to understand the relationship.

Hardware concurrency shows 1 even on a multi-core machine

Çözüm

Some browsers cap navigator.hardwareConcurrency for privacy reasons. Firefox and Brave may report a reduced or fixed value to prevent fingerprinting.

Sıkça Sorulan Sorular

Is this information sent to a server?

No. All information is read directly from browser APIs (navigator, screen, window) and displayed locally. Nothing is transmitted to any server. The page works offline once loaded.

Why does the OS version sometimes appear incorrect?

OS version detection relies on parsing the user agent string, which browsers may not update accurately and which privacy-focused browsers may spoof. For accurate OS information, check your system settings.

What is device pixel ratio?

Device pixel ratio (DPR) is the ratio of physical screen pixels to CSS pixels. A DPR of 2 means 4 physical pixels per CSS pixel — common on Retina displays. Higher DPR values produce sharper rendering but affect how images need to be sized.

What is hardware concurrency?

Hardware concurrency (navigator.hardwareConcurrency) reports the number of logical CPU cores available. Web applications can use this to decide how many parallel Web Workers to spawn for CPU-intensive tasks.

Can I use this to test if a user is on mobile?

Yes, Device Info shows the user agent string and touch support. For reliable mobile detection in production code, check for touch events and viewport width rather than relying solely on user agent parsing.

Does it show GPU information?

Basic GPU information may be available via the WebGL renderer string (RENDERER). This tool focuses on the most practically useful device properties — GPU details are included where the browser exposes them.

Why does the viewport size differ from the screen size?

Viewport is the visible area of the browser window (inside the browser chrome). Screen size is the total physical display resolution. These differ because the browser toolbar, taskbar, and other chrome take up space.

Can this be used for browser fingerprinting?

The properties shown here are the same ones used in browser fingerprinting. This tool simply surfaces them for legitimate debugging purposes. Privacy-focused browsers intentionally reduce the uniqueness of these values.