Test your current browser, display and connected input/output devices with practical local-first diagnostic tools.
Local-first diagnostics. Permission-gated devices are only accessed after you start a test, and BrowserTestLab does not create or transmit a persistent browser fingerprint.
Mouse TestsTest mouse buttons, clicks, scrolling, pointer movement, effective DPI, observed event rate and browser-level timing.Keyboard TestsTest keyboard keys, rollover, ghosting, repeated events and browser-observed key timing.Gamepad & Controller TestsInspect gamepad and controller buttons, axes, triggers, stick centring and raw Gamepad API input.Display & Monitor TestsCheck display patterns, pixels, browser-observed refresh/FPS and screen/viewport metrics.Camera, Microphone & Audio TestsTest local camera, microphone, speakers, headphones, stereo channels and browser audio timing.Browser & System DiagnosticsInspect browser capabilities, storage, graphics APIs, permissions, WebRTC and privacy-relevant signals.