Hardware

Screen Frame Detection

Screen frame and taskbar

Live Playground

Analyzing your browser...0%

API Docs

Endpoint

GET /api/fingerprint/screen-frame

Examples

About

Screen frame fingerprinting detects the presence and size of operating system UI elements like taskbars, docks, menu bars, and window chrome by comparing screen.width/height with screen.availWidth/availHeight. This reveals OS-specific interface configurations that are highly stable per user. Windows users with taskbars, macOS users with menu bars and docks, and Linux users with various window managers create distinctive patterns. The technique can identify dual-monitor setups, vertical vs horizontal taskbar placement, taskbar auto-hide settings, and even taskbar size customizations. Combined with screen resolution, this creates a powerful fingerprinting signal that's difficult to spoof without full OS emulation.

Use Cases

•OS detection
•Interface layout
•Multi-monitor setup
•User preferences

Other Fingerprints

Compare related fingerprint signals

Move from this collector to the CreepJS signal index, live checker, API docs, and other high-value fingerprinting explainers.

Core pages

Browser Fingerprinting PlatformRun a privacy-first browser fingerprint check and learn what websites can infer about your device.Fingerprint CheckerTest your browser privacy with a live fingerprint scan, collector coverage, and privacy leakage analysis.IP Risk CheckerCheck IP risk, ASN, geolocation, proxy, VPN, Tor, datacenter, and routing signals through the CreepJS API.Browser Fingerprint SignalsBrowse the full CreepJS library of browser fingerprinting signals, including canvas, WebGL, WebRTC, fonts, storage, and privacy checks.DocumentationRead the CreepJS API, SDK, collector, and integration documentation for privacy-first browser fingerprinting.API PlaygroundGenerate a token, inspect sample payloads, and test CreepJS browser fingerprinting API calls.What Is Browser Fingerprinting?Learn how browser fingerprinting works, which signals are collected, and how privacy tools reduce tracking.

Popular fingerprint signals

Canvas FingerprintCanvas rendering fingerprint based on how the browser draws graphics. Test your browser's unique canvas signature.WebGL FingerprintWebGL GPU information and rendering capabilities. Detect your graphics card and WebGL implementation.WebRTC FingerprintWebRTC capabilities and IP leakage checks. Detect peer connection support and potential network exposure signals.Anti-Fingerprinting DetectionDetection of privacy tools and browser modifications. Identify fingerprint resistance.Navigator InformationBrowser navigator properties and user agent information. Analyze browser capabilities and settings.Font DetectionInstalled system fonts detection. Discover which fonts are available on your system.