This page collects and displays information about your browser capabilities and display properties.
Browser identity, language, vendor, and user agent details.
Screen dimensions, pixel ratio, orientation, and viewport behavior.
Visual reference: how each HTML element renders with only the UA stylesheet β useful for spotting form-control / table / details / heading quirks on kiosks, Tesla in-car browsers, embedded WebViews.
CSS feature support: selectors, color spaces, math, layout, animations.
Device hardware interfaces: Bluetooth, USB, HID, serial, gamepad, sensors.
Audio and video codec support, media APIs, and playback capabilities.
Storage APIs, quotas, persistence, and file system access.
Network information, connectivity, and transport APIs.
Canvas, WebGL, WebGPU, and CSS rendering capabilities.
Touch, pointer, keyboard, and motion input capabilities.
Browser permission states for various APIs.
Credentials, WebAuthn passkeys, and federated identity.
Service/Web/SharedWorker, scheduling, atomics, and concurrency primitives.
PWA lifecycle: notifications, badging, push, launch handlers, navigation, payments.
AI and experimental APIs: WebNN, on-device ML, language tools.
Font availability, glyph rendering, and CSS font features.
Fingerprinting protection, tracking preferences, and privacy settings.
Speech synthesis and recognition capabilities.
ECMAScript language features and runtime additions.
Performance metrics, memory, and platform-level capabilities.
APIs found on navigator or window that are not yet catalogued in the probe registry.
Export or share all the collected information using one of the methods below.
Add labels and notes so exported runs are easier to compare across devices and browsers.
Save all data as a JSON file on your device.
Copy all data as JSON to your clipboard.
Prepare an email with the browser data.
Send all collected data to the server in one click.
Send data to a server via HTTP POST.
Generate a QR code containing the browser data (works best with smaller datasets).