Capability-first diagnostics
Know what your browser can actually test.
DeviceOK feature-detects hardware APIs. Unsupported means the browser does not expose that test here—not that your device is broken.
Browser capabilities
Checking what this browser can test…
Works broadly
- Microphone/camera with permission
- Keyboard and pointer events
- Gamepad where the browser exposes it
- Fullscreen and display test patterns
Browser/platform dependent
- Web MIDI
- WebHID
- WebUSB
- Web Serial
- Web Bluetooth
- Network Information
- Motion/orientation sensors
Not a browser-health claim
- SSD SMART or bad-sector health
- RAM memory diagnostics
- CPU/GPU temperatures
- Battery cell health
- Firmware integrity
- Internal hardware bus diagnostics
Available tests
Browse all tests167 tools use capability detection
Open the full directory to see tests that are available now and advanced tools that explain their browser requirements before requesting access.