Browser Capabilities & Peripheral Access Tester

Check which browser APIs are available on this device and try permission-gated features such as camera, microphone, screen capture, sensors, storage, graphics, and speech.

What this tool does

Browser Capabilities & Peripheral Access Tester is a diagnostic playground for browser support and permission-gated APIs. It reports device and browser information, checks feature support, and lets you try capabilities such as media capture, geolocation, sensors, Bluetooth, USB, serial, NFC, storage, file access, clipboard, notifications, fullscreen, graphics, workers, and speech.

Who this is for

• Web developers testing progressive enhancement and browser support
• QA teams checking permissions and device-specific behavior
• Students learning how browser APIs expose hardware and platform features
• Users diagnosing whether a browser can support a media, storage, or interaction workflow

How to use this tool

1. Open a capability section and read its support indicator
2. Use non-invasive checks such as Get Device/Browser Info, Get Network Info, Get Battery Info, or public IP when available
3. For permission-gated tests, choose the relevant request button and respond to the browser permission prompt
4. Stop camera, microphone, screen, sensor, or gamepad activity when finished
5. Enter sample text for speech, clipboard, or storage tests, and inspect the status output after each action
6. Use Show Code to view the example implementation for a tested capability

Inputs

• Device APIs — Camera, microphone, screen, geolocation, sensors, gamepads, Bluetooth, USB, serial, and NFC requests
• Browser data — Storage keys and values, IndexedDB test values, file text, permission type, and clipboard text
• Media and speech — Text-to-speech text and voice, speech-recognition controls, and recording actions
• Graphics and performance — Canvas, WebGL, WebGPU, worker, performance, fullscreen, and idle-detection controls

Outputs

• Support indicators — Available, unavailable, or permission-dependent status for each API group
• Diagnostic output — Device info, network details, permission state, sensor readings, pointer events, and API errors
• Media results — Live previews, recording controls, Picture-in-Picture attempts, and downloadable recordings where supported
• Graphics results — Canvas drawings and WebGL/WebGPU initialization status
• Code examples — Expandable snippets for the tested feature

Example use cases

• Browser compatibility checks — Confirm support before shipping a camera, sensor, or storage feature
• Permission troubleshooting — Separate unsupported APIs from denied or unavailable permissions
• Web API learning — Run small interactive examples and inspect the corresponding code

Frequently asked questions